22156612 has 12 divisors (see below), whose sum is σ = 38808000. Its totient is φ = 11068616.

The previous prime is 22156591. The next prime is 22156619. The reversal of 22156612 is 21665122.

It is not an unprimeable number, because it can be changed into a prime (22156619) 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, 5889 + ... + 8887.

It is an arithmetic number, because the mean of its divisors is an integer number (3234000).

Almost surely, 2^22156612 is an apocalyptic number.

It is an amenable number.

22156612 is a deficient number, since it is larger than the sum of its proper divisors (16651388).

22156612 is a wasteful number, since it uses less digits than its factorization.

22156612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850 (or 4848 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 22156612 is about 4707.0810488030. The cubic root of 22156612 is about 280.8672599923.

The spelling of 22156612 in words is "twenty-two million, one hundred fifty-six thousand, six hundred twelve".