2112120120204 has 72 divisors (see below), whose sum is σ = 5653340652960. Its totient is φ = 662589199872.

The previous prime is 2112120120191. The next prime is 2112120120239. The reversal of 2112120120204 is 4020210212112.

It is a super-2 number, since 2×2112120120204² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 12260337 + ... + 12431415.

It is an arithmetic number, because the mean of its divisors is an integer number (78518620180).

Almost surely, 2^{2112120120204} is an apocalyptic number.

It is an amenable number.

2112120120204 is an abundant number, since it is smaller than the sum of its proper divisors (3541220532756).

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

2112120120204 is a wasteful number, since it uses less digits than its factorization.

2112120120204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191279 (or 191274 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2112120120204 its reverse (4020210212112), we get a palindrome (6132330332316).

The spelling of 2112120120204 in words is "two trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty thousand, two hundred four".