22108972 has 6 divisors (see below), whose sum is σ = 38690708. Its totient is φ = 11054484.

The previous prime is 22108949. The next prime is 22108973. The reversal of 22108972 is 27980122.

It is not an unprimeable number, because it can be changed into a prime (22108973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2763618 + ... + 2763625.

Almost surely, 2^22108972 is an apocalyptic number.

It is an amenable number.

22108972 is a deficient number, since it is larger than the sum of its proper divisors (16581736).

22108972 is a wasteful number, since it uses less digits than its factorization.

22108972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527247 (or 5527245 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 22108972 is about 4702.0178647045. The cubic root of 22108972 is about 280.6658134629.

The spelling of 22108972 in words is "twenty-two million, one hundred eight thousand, nine hundred seventy-two".