13221000232 has 32 divisors (see below), whose sum is σ = 28633720320. Its totient is φ = 5656042240.

The previous prime is 13221000209. The next prime is 13221000257. The reversal of 13221000232 is 23200012231.

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, 4417288 + ... + 4420279.

It is an arithmetic number, because the mean of its divisors is an integer number (894803760).

Almost surely, 2^13221000232 is an apocalyptic number.

It is an amenable number.

13221000232 is an abundant number, since it is smaller than the sum of its proper divisors (15412720088).

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

13221000232 is a wasteful number, since it uses less digits than its factorization.

13221000232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837601 (or 8837597 counting only the distinct ones).

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

Adding to 13221000232 its reverse (23200012231), we get a palindrome (36421012463).

The spelling of 13221000232 in words is "thirteen billion, two hundred twenty-one million, two hundred thirty-two", and thus it is an aban number.