313033223221 has 16 divisors (see below), whose sum is σ = 336166032384. Its totient is φ = 290450421504.

The previous prime is 313033223213. The next prime is 313033223249. The reversal of 313033223221 is 122322330313.

It is not a de Polignac number, because 313033223221 - 2³ = 313033223213 is a prime.

It is a super-2 number, since 2×313033223221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313033223521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10366 + ... + 791311.

It is an arithmetic number, because the mean of its divisors is an integer number (21010377024).

Almost surely, 2^313033223221 is an apocalyptic number.

It is an amenable number.

313033223221 is a deficient number, since it is larger than the sum of its proper divisors (23132809163).

313033223221 is a wasteful number, since it uses less digits than its factorization.

313033223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802020.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 313033223221 its reverse (122322330313), we get a palindrome (435355553534).

The spelling of 313033223221 in words is "three hundred thirteen billion, thirty-three million, two hundred twenty-three thousand, two hundred twenty-one".