22231204 has 12 divisors (see below), whose sum is σ = 39262300. Its totient is φ = 11013408.

The previous prime is 22231199. The next prime is 22231219. The reversal of 22231204 is 40213222.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 8526400 = 3702^2 + 2920^2 .

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 3 ways as a sum of consecutive naturals, for example, 25059 + ... + 25930.

Almost surely, 2^22231204 is an apocalyptic number.

It is an amenable number.

22231204 is a deficient number, since it is larger than the sum of its proper divisors (17031096).

22231204 is a wasteful number, since it uses less digits than its factorization.

22231204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51102 (or 51100 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22231204 is about 4714.9977730642. The cubic root of 22231204 is about 281.1820942891.

Adding to 22231204 its reverse (40213222), we get a palindrome (62444426).

The spelling of 22231204 in words is "twenty-two million, two hundred thirty-one thousand, two hundred four".