12021232 has 10 divisors (see below), whose sum is σ = 23291168. Its totient is φ = 6010608.

The previous prime is 12021187. The next prime is 12021259. The reversal of 12021232 is 23212021.

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, 375648 + ... + 375679.

Almost surely, 2^12021232 is an apocalyptic number.

It is an amenable number.

12021232 is a deficient number, since it is larger than the sum of its proper divisors (11269936).

12021232 is an equidigital number, since it uses as much as digits as its factorization.

12021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751335 (or 751329 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12021232 is about 3467.1648360007. The cubic root of 12021232 is about 229.0777943583.

Adding to 12021232 its reverse (23212021), we get a palindrome (35233253).

It can be divided in two parts, 12021 and 232, that multiplied together give a palindrome (2788872).

The spelling of 12021232 in words is "twelve million, twenty-one thousand, two hundred thirty-two".