2112222222120 has 32 divisors (see below), whose sum is σ = 6336666666720. Its totient is φ = 563259259200.

The previous prime is 2112222222113. The next prime is 2112222222151. The reversal of 2112222222120 is 212222222112.

It is a super-2 number, since 2×2112222222120² (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 7 ways as a sum of consecutive naturals, for example, 8800925806 + ... + 8800926045.

It is an arithmetic number, because the mean of its divisors is an integer number (198020833335).

Almost surely, 2^{2112222222120} is an apocalyptic number.

2112222222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112222222120 is an abundant number, since it is smaller than the sum of its proper divisors (4224444444600).

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

2112222222120 is a wasteful number, since it uses less digits than its factorization.

2112222222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17601851865 (or 17601851861 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2112222222120 its reverse (212222222112), we get a palindrome (2324444444232).

It can be divided in two parts, 211222 and 2222120, that added together give a palindrome (2433342).

The spelling of 2112222222120 in words is "two trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".