22188922 has 16 divisors (see below), whose sum is σ = 40040640. Its totient is φ = 9008928.

The previous prime is 22188871. The next prime is 22188923. The reversal of 22188922 is 22988122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22188923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41443 + ... + 41974.

It is an arithmetic number, because the mean of its divisors is an integer number (2502540).

Almost surely, 2^22188922 is an apocalyptic number.

22188922 is a deficient number, since it is larger than the sum of its proper divisors (17851718).

22188922 is a wasteful number, since it uses less digits than its factorization.

22188922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83445.

The product of its digits is 9216, while the sum is 34.

The square root of 22188922 is about 4710.5118617832. The cubic root of 22188922 is about 281.0037190864.

The spelling of 22188922 in words is "twenty-two million, one hundred eighty-eight thousand, nine hundred twenty-two".