2120111112112 has 80 divisors (see below), whose sum is σ = 4969352298240. Its totient is φ = 856885268736.

The previous prime is 2120111112109. The next prime is 2120111112127. The reversal of 2120111112112 is 2112111110212.

It is a super-2 number, since 2×2120111112112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7450378 + ... + 7729705.

It is an arithmetic number, because the mean of its divisors is an integer number (62116903728).

Almost surely, 2^{2120111112112} is an apocalyptic number.

It is an amenable number.

2120111112112 is an abundant number, since it is smaller than the sum of its proper divisors (2849241186128).

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

2120111112112 is a wasteful number, since it uses less digits than its factorization.

2120111112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180170 (or 15180164 counting only the distinct ones).

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

Adding to 2120111112112 its reverse (2112111110212), we get a palindrome (4232222222324).

The spelling of 2120111112112 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".