22212111220112 has 20 divisors (see below), whose sum is σ = 46948325988336. Its totient is φ = 10096414190880.

The previous prime is 22212111220037. The next prime is 22212111220147. The reversal of 22212111220112 is 21102211121222.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63102588518 + ... + 63102588869.

Almost surely, 2^{22212111220112} is an apocalyptic number.

22212111220112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22212111220112 is an abundant number, since it is smaller than the sum of its proper divisors (24736214768224).

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

22212111220112 is a wasteful number, since it uses less digits than its factorization.

22212111220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126205177406 (or 126205177400 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22212111220112 its reverse (21102211121222), we get a palindrome (43314322341334).

The spelling of 22212111220112 in words is "twenty-two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty thousand, one hundred twelve".