13221160 has 32 divisors (see below), whose sum is σ = 29859840. Its totient is φ = 5268544.

The previous prime is 13221151. The next prime is 13221191. The reversal of 13221160 is 6112231.

13221160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14889 + ... + 15751.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^13221160 is an apocalyptic number.

13221160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221160 is an abundant number, since it is smaller than the sum of its proper divisors (16638680).

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

13221160 is a wasteful number, since it uses less digits than its factorization.

13221160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 13221160 is about 3636.0913079844. The cubic root of 13221160 is about 236.4593657421.

Adding to 13221160 its reverse (6112231), we get a palindrome (19333391).

The spelling of 13221160 in words is "thirteen million, two hundred twenty-one thousand, one hundred sixty".