12220504 has 8 divisors (see below), whose sum is σ = 22913460. Its totient is φ = 6110248.

The previous prime is 12220489. The next prime is 12220519. The reversal of 12220504 is 40502221.

12220504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12220489) and next prime (12220519).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763774 + ... + 763789.

Almost surely, 2^12220504 is an apocalyptic number.

It is an amenable number.

12220504 is a deficient number, since it is larger than the sum of its proper divisors (10692956).

12220504 is a wasteful number, since it uses less digits than its factorization.

12220504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527569 (or 1527565 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 12220504 is about 3495.7837461720. The cubic root of 12220504 is about 230.3366462738.

Adding to 12220504 its reverse (40502221), we get a palindrome (52722725).

The spelling of 12220504 in words is "twelve million, two hundred twenty thousand, five hundred four".