13221002304 has 56 divisors (see below), whose sum is σ = 38867303520. Its totient is φ = 4407000192.

The previous prime is 13221002297. The next prime is 13221002317. The reversal of 13221002304 is 40320012231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3823794 + ... + 3827249.

Almost surely, 2^13221002304 is an apocalyptic number.

It is an amenable number.

13221002304 is an abundant number, since it is smaller than the sum of its proper divisors (25646301216).

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

13221002304 is an equidigital number, since it uses as much as digits as its factorization.

13221002304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651064 (or 7651048 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13221002304 its reverse (40320012231), we get a palindrome (53541014535).

The spelling of 13221002304 in words is "thirteen billion, two hundred twenty-one million, two thousand, three hundred four".