120120121202121 has 24 divisors (see below), whose sum is σ = 177544192082400. Its totient is φ = 78216736743936.

The previous prime is 120120121202111. The next prime is 120120121202141. The reversal of 120120121202121 is 121202121021021.

120120121202121 is a `hidden beast` number, since 1 + 201 + 20 + 121 + 202 + 121 = 666.

It is not a de Polignac number, because 120120121202121 - 2⁶ = 120120121202057 is a prime.

It is a super-2 number, since 2×120120121202121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120120121202094 and 120120121202103.

It is not an unprimeable number, because it can be changed into a prime (120120121202111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28388905 + ... + 32344553.

It is an arithmetic number, because the mean of its divisors is an integer number (7397674670100).

Almost surely, 2^{120120121202121} is an apocalyptic number.

It is an amenable number.

120120121202121 is a deficient number, since it is larger than the sum of its proper divisors (57424070880279).

120120121202121 is a wasteful number, since it uses less digits than its factorization.

120120121202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034165 (or 4034162 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120120121202121 its reverse (121202121021021), we get a palindrome (241322242223142).

The spelling of 120120121202121 in words is "one hundred twenty trillion, one hundred twenty billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-one".