313220221002 has 64 divisors (see below), whose sum is σ = 752804357760. Its totient is φ = 95961773952.

The previous prime is 313220220979. The next prime is 313220221021. The reversal of 313220221002 is 200122022313.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793908 + ... + 1121039.

It is an arithmetic number, because the mean of its divisors is an integer number (11762568090).

Almost surely, 2^313220221002 is an apocalyptic number.

313220221002 is an abundant number, since it is smaller than the sum of its proper divisors (439584136758).

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

313220221002 is a wasteful number, since it uses less digits than its factorization.

313220221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915204 (or 1915198 counting only the distinct ones).

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

Adding to 313220221002 its reverse (200122022313), we get a palindrome (513342243315).

The spelling of 313220221002 in words is "three hundred thirteen billion, two hundred twenty million, two hundred twenty-one thousand, two".