313122202220 has 96 divisors (see below), whose sum is σ = 673103934720. Its totient is φ = 122326364160.

The previous prime is 313122202213. The next prime is 313122202279. The reversal of 313122202220 is 22202221313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 313122202192 and 313122202201.

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, 109443590 + ... + 109446450.

It is an arithmetic number, because the mean of its divisors is an integer number (7011499320).

Almost surely, 2^313122202220 is an apocalyptic number.

It is an amenable number.

313122202220 is an abundant number, since it is smaller than the sum of its proper divisors (359981732500).

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

313122202220 is a wasteful number, since it uses less digits than its factorization.

313122202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675 (or 3673 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 313122202220 its reverse (22202221313), we get a palindrome (335324423533).

The spelling of 313122202220 in words is "three hundred thirteen billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty".