31222222222213 has 8 divisors (see below), whose sum is σ = 36064171123200. Its totient is φ = 26714200831680.

The previous prime is 31222222222201. The next prime is 31222222222277.

31222222222213 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 31222222222213 - 2¹³ = 31222222214021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222222222013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83481877413 + ... + 83481877786.

It is an arithmetic number, because the mean of its divisors is an integer number (4508021390400).

Almost surely, 2^{31222222222213} is an apocalyptic number.

It is an amenable number.

31222222222213 is a deficient number, since it is larger than the sum of its proper divisors (4841948900987).

31222222222213 is a wasteful number, since it uses less digits than its factorization.

31222222222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166963755227.

The product of its digits is 9216, while the sum is 28.

It can be divided in two parts, 3122222 and 2222213, that added together give a palindrome (5344435).

The spelling of 31222222222213 in words is "thirty-one trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred thirteen".