13212232 has 24 divisors (see below), whose sum is σ = 27231750. Its totient is φ = 6005120.

The previous prime is 13212229. The next prime is 13212259. The reversal of 13212232 is 23221231.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 352836 = 3586^2 + 594^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5857 + ... + 7792.

Almost surely, 2^13212232 is an apocalyptic number.

It is an amenable number.

13212232 is an abundant number, since it is smaller than the sum of its proper divisors (14019518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13212232 is a wasteful number, since it uses less digits than its factorization.

13212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13677 (or 13662 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 13212232 is about 3634.8634087129. The cubic root of 13212232 is about 236.4061282401.

Adding to 13212232 its reverse (23221231), we get a palindrome (36433463).

It can be divided in two parts, 1321 and 2232, that added together give a palindrome (3553).

The spelling of 13212232 in words is "thirteen million, two hundred twelve thousand, two hundred thirty-two".