12220232 has 8 divisors (see below), whose sum is σ = 22912950. Its totient is φ = 6110112.

The previous prime is 12220217. The next prime is 12220237. The reversal of 12220232 is 23202221.

It can be written as a sum of positive squares in only one way, i.e., 6584356 + 5635876 = 2566^2 + 2374^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12220237) 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 as a sum of consecutive naturals, namely, 763757 + ... + 763772.

Almost surely, 2^12220232 is an apocalyptic number.

It is an amenable number.

12220232 is a deficient number, since it is larger than the sum of its proper divisors (10692718).

12220232 is a wasteful number, since it uses less digits than its factorization.

12220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527535 (or 1527531 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12220232 is about 3495.7448419471. The cubic root of 12220232 is about 230.3349373418.

Adding to 12220232 its reverse (23202221), we get a palindrome (35422453).

The spelling of 12220232 in words is "twelve million, two hundred twenty thousand, two hundred thirty-two".