120656670752121 has 32 divisors (see below), whose sum is σ = 195391298285568. Its totient is φ = 64651532417280.

The previous prime is 120656670752071. The next prime is 120656670752129. The reversal of 120656670752121 is 121257076656021.

It is not a de Polignac number, because 120656670752121 - 2¹⁵ = 120656670719353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (120656670752129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623471275 + ... + 623664768.

It is an arithmetic number, because the mean of its divisors is an integer number (6105978071424).

Almost surely, 2^{120656670752121} is an apocalyptic number.

It is an amenable number.

120656670752121 is a deficient number, since it is larger than the sum of its proper divisors (74734627533447).

120656670752121 is a wasteful number, since it uses less digits than its factorization.

120656670752121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247136341.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 120656670752121 in words is "one hundred twenty trillion, six hundred fifty-six billion, six hundred seventy million, seven hundred fifty-two thousand, one hundred twenty-one".