13220321002 has 16 divisors (see below), whose sum is σ = 23444904960. Its totient is φ = 5470477488.

The previous prime is 13220320979. The next prime is 13220321017. The reversal of 13220321002 is 20012302231.

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, 16280778 + ... + 16281589.

It is an arithmetic number, because the mean of its divisors is an integer number (1465306560).

Almost surely, 2^13220321002 is an apocalyptic number.

13220321002 is a deficient number, since it is larger than the sum of its proper divisors (10224583958).

13220321002 is a wasteful number, since it uses less digits than its factorization.

13220321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32562405.

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

Adding to 13220321002 its reverse (20012302231), we get a palindrome (33232623233).

The spelling of 13220321002 in words is "thirteen billion, two hundred twenty million, three hundred twenty-one thousand, two".