22156970 has 32 divisors (see below), whose sum is σ = 44136576. Its totient is φ = 7940800.

The previous prime is 22156951. The next prime is 22156987. The reversal of 22156970 is 7965122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6392 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (1379268).

Almost surely, 2^22156970 is an apocalyptic number.

22156970 is a deficient number, since it is larger than the sum of its proper divisors (21979606).

22156970 is a wasteful number, since it uses less digits than its factorization.

22156970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 22156970 is about 4707.1190764628. The cubic root of 22156970 is about 280.8687727076.

The spelling of 22156970 in words is "twenty-two million, one hundred fifty-six thousand, nine hundred seventy".