22189156 has 12 divisors (see below), whose sum is σ = 42361200. Its totient is φ = 10085960.

The previous prime is 22189151. The next prime is 22189201. The reversal of 22189156 is 65198122.

It is not an unprimeable number, because it can be changed into a prime (22189151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252106 + ... + 252193.

It is an arithmetic number, because the mean of its divisors is an integer number (3530100).

Almost surely, 2^22189156 is an apocalyptic number.

It is an amenable number.

22189156 is a deficient number, since it is larger than the sum of its proper divisors (20172044).

22189156 is a wasteful number, since it uses less digits than its factorization.

22189156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504314 (or 504312 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 22189156 is about 4710.5366997827. The cubic root of 22189156 is about 281.0047068862.

The spelling of 22189156 in words is "twenty-two million, one hundred eighty-nine thousand, one hundred fifty-six".