222122112120 has 96 divisors (see below), whose sum is σ = 759891459600. Its totient is φ = 56115058176.

The previous prime is 222122112119. The next prime is 222122112181. The reversal of 222122112120 is 21211221222.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 222122112093 and 222122112102.

It is a congruent number.

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, 16230157 + ... + 16243836.

Almost surely, 2^222122112120 is an apocalyptic number.

222122112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122112120 is an abundant number, since it is smaller than the sum of its proper divisors (537769347480).

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

222122112120 is a wasteful number, since it uses less digits than its factorization.

222122112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32474029 (or 32474022 counting only the distinct ones).

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

Adding to 222122112120 its reverse (21211221222), we get a palindrome (243333333342).

The spelling of 222122112120 in words is "two hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty".