22111002128 has 40 divisors (see below), whose sum is σ = 45906624288. Its totient is φ = 10279803392.

The previous prime is 22111002127. The next prime is 22111002149. The reversal of 22111002128 is 82120011122.

It is not an unprimeable number, because it can be changed into a prime (22111002127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467126 + ... + 512277.

Almost surely, 2^22111002128 is an apocalyptic number.

It is an amenable number.

22111002128 is an abundant number, since it is smaller than the sum of its proper divisors (23795622160).

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

22111002128 is a wasteful number, since it uses less digits than its factorization.

22111002128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979511 (or 979505 counting only the distinct ones).

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

The spelling of 22111002128 in words is "twenty-two billion, one hundred eleven million, two thousand, one hundred twenty-eight".