13221000332 has 24 divisors (see below), whose sum is σ = 23681957376. Its totient is φ = 6454819728.

The previous prime is 13221000307. The next prime is 13221000349. The reversal of 13221000332 is 23300012231.

It is a super-2 number, since 2×13221000332² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13221000332.

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, 679613 + ... + 698795.

It is an arithmetic number, because the mean of its divisors is an integer number (986748224).

Almost surely, 2^13221000332 is an apocalyptic number.

It is an amenable number.

13221000332 is a deficient number, since it is larger than the sum of its proper divisors (10460957044).

13221000332 is a wasteful number, since it uses less digits than its factorization.

13221000332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23237 (or 23235 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13221000332 its reverse (23300012231), we get a palindrome (36521012563).

The spelling of 13221000332 in words is "thirteen billion, two hundred twenty-one million, three hundred thirty-two", and thus it is an aban number.