120112021010121 has 32 divisors (see below), whose sum is σ = 183290181185280. Its totient is φ = 68537067653376.

The previous prime is 120112021010089. The next prime is 120112021010171. The reversal of 120112021010121 is 121010120211021.

It is a happy number.

It is not a de Polignac number, because 120112021010121 - 2⁵ = 120112021010089 is a prime.

It is a super-2 number, since 2×120112021010121² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120112021010121.

It is not an unprimeable number, because it can be changed into a prime (120112021010171) 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, 1061782255 + ... + 1061895371.

It is an arithmetic number, because the mean of its divisors is an integer number (5727818162040).

Almost surely, 2^{120112021010121} is an apocalyptic number.

It is an amenable number.

120112021010121 is a deficient number, since it is larger than the sum of its proper divisors (63178160175159).

120112021010121 is a wasteful number, since it uses less digits than its factorization.

120112021010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185153.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120112021010121 its reverse (121010120211021), we get a palindrome (241122141221142).

The spelling of 120112021010121 in words is "one hundred twenty trillion, one hundred twelve billion, twenty-one million, ten thousand, one hundred twenty-one".