13221596 has 24 divisors (see below), whose sum is σ = 24343200. Its totient is φ = 6271232.

The previous prime is 13221583. The next prime is 13221599. The reversal of 13221596 is 69512231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12080 + ... + 13128.

It is an arithmetic number, because the mean of its divisors is an integer number (1014300).

Almost surely, 2^13221596 is an apocalyptic number.

It is an amenable number.

13221596 is a deficient number, since it is larger than the sum of its proper divisors (11121604).

13221596 is a wasteful number, since it uses less digits than its factorization.

13221596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1211 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 13221596 is about 3636.1512619802. The cubic root of 13221596 is about 236.4619649883.

The spelling of 13221596 in words is "thirteen million, two hundred twenty-one thousand, five hundred ninety-six".