22112120028 has 48 divisors (see below), whose sum is σ = 51794709120. Its totient is φ = 7342209600.

The previous prime is 22112120027. The next prime is 22112120039. The reversal of 22112120028 is 82002121122.

It is a junction number, because it is equal to n+sod(n) for n = 22112119986 and 22112120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112120021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9170143 + ... + 9172553.

It is an arithmetic number, because the mean of its divisors is an integer number (1079056440).

Almost surely, 2^22112120028 is an apocalyptic number.

It is an amenable number.

22112120028 is an abundant number, since it is smaller than the sum of its proper divisors (29682589092).

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

22112120028 is a wasteful number, since it uses less digits than its factorization.

22112120028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The spelling of 22112120028 in words is "twenty-two billion, one hundred twelve million, one hundred twenty thousand, twenty-eight".