12220508 has 12 divisors (see below), whose sum is σ = 21964152. Its totient is φ = 5945040.

The previous prime is 12220489. The next prime is 12220519. The reversal of 12220508 is 80502221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220508.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 41138 + ... + 41433.

It is an arithmetic number, because the mean of its divisors is an integer number (1830346).

Almost surely, 2^12220508 is an apocalyptic number.

It is an amenable number.

12220508 is a deficient number, since it is larger than the sum of its proper divisors (9743644).

12220508 is a wasteful number, since it uses less digits than its factorization.

12220508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82612 (or 82610 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 12220508 is about 3495.7843182897. The cubic root of 12220508 is about 230.3366714050.

Adding to 12220508 its reverse (80502221), we get a palindrome (92722729).

The spelling of 12220508 in words is "twelve million, two hundred twenty thousand, five hundred eight".