313122202221 has 8 divisors (see below), whose sum is σ = 417541750624. Its totient is φ = 208725394320.

The previous prime is 313122202213. The next prime is 313122202279. The reversal of 313122202221 is 122202221313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313122202221 - 2³ = 313122202213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313122202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5652970 + ... + 5708091.

It is an arithmetic number, because the mean of its divisors is an integer number (52192718828).

Almost surely, 2^313122202221 is an apocalyptic number.

It is an amenable number.

313122202221 is a deficient number, since it is larger than the sum of its proper divisors (104419548403).

313122202221 is a wasteful number, since it uses less digits than its factorization.

313122202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11370251.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 313122202221 its reverse (122202221313), we get a palindrome (435324423534).

The spelling of 313122202221 in words is "three hundred thirteen billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-one".