23221204 has 12 divisors (see below), whose sum is σ = 41582464. Its totient is φ = 11340504.

The previous prime is 23221193. The next prime is 23221223. The reversal of 23221204 is 40212232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67332 + ... + 67675.

Almost surely, 2^23221204 is an apocalyptic number.

It is an amenable number.

23221204 is a deficient number, since it is larger than the sum of its proper divisors (18361260).

23221204 is a wasteful number, since it uses less digits than its factorization.

23221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135054 (or 135052 counting only the distinct ones).

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

The square root of 23221204 is about 4818.8384492531. The cubic root of 23221204 is about 285.2954932545.

Adding to 23221204 its reverse (40212232), we get a palindrome (63433436).

The spelling of 23221204 in words is "twenty-three million, two hundred twenty-one thousand, two hundred four".