Discover a lot of information on the number 121: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!

## Mathematical properties of 121

Is 121 a prime number? No
Is 121 a perfect number? No
Number of divisors 3
List of dividers 1, 11, 121
Sum of divisors 133
Prime factorization 112
Prime factors 11

## How to write / spell 121 in letters?

In letters, the number 121 is written as: One hundred and twenty-one. And in other languages? how does it spell?

121 in other languages
Write 121 in english One hundred and twenty-one
Write 121 in french Cent vingt et un
Write 121 in spanish Ciento veintiuno
Write 121 in portuguese Cento vinte e um

## Decomposition of the number 121

The number 121 is composed of:

2 iterations of the number 1 : The number 1 (one) represents the uniqueness, the unique, a starting point, a beginning.... Find out more about the number 1

1 iteration of the number 2 : The number 2 (two) represents double, association, cooperation, union, complementarity. It is the symbol of duality.... Find out more about the number 2

Other ways to write 121
In letter One hundred and twenty-one
In roman numeral CXXI
In binary 1111001
In octal 171
In US dollars
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USD 121.00 (\$)
In euros
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121,00 EUR (€)
Some related numbers
Previous number 120
Next number 122
Next prime number 127

## Mathematical operations

Operations and solutions
121*2 = 242 The double of 121 is 242
121*3 = 363 The triple of 121 is 363
121/2 = 60.5 The half of 121 is 60.500000
121/3 = 40.333333333333 The third of 121 is 40.333333
1212 = 14641 The square of 121 is 14641.000000
1213 = 1771561 The cube of 121 is 1771561.000000
√121 = 11 The square root of 121 is 11.000000
log(121) = 4.7957905455967 The natural (Neperian) logarithm of 121 is 4.795791
log10(121) = 2.0827853703164 The decimal logarithm (base 10) of 121 is 2.082785
sin(121) = 0.99881522472358 The sine of 121 is 0.998815
cos(121) = -0.048663609200154 The cosine of 121 is -0.048664
tan(121) = -20.524889977138 The tangent of 121 is -20.524890