2121235422120 has 96 divisors (see below), whose sum is σ = 7062161881320. Its totient is φ = 551866122240.

The previous prime is 2121235422067. The next prime is 2121235422151. The reversal of 2121235422120 is 212245321212.

2121235422120 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 235 + 422 + 1 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 657101541924 + 1464133880196 = 810618^2 + 1210014^2 .

It is a super-2 number, since 2×2121235422120² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71842809 + ... + 71872328.

Almost surely, 2^{2121235422120} is an apocalyptic number.

2121235422120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121235422120 is an abundant number, since it is smaller than the sum of its proper divisors (4940926459200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121235422120 is a wasteful number, since it uses less digits than its factorization.

2121235422120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143715195 (or 143715188 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 2121235422120 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-five million, four hundred twenty-two thousand, one hundred twenty".