31222433422213 has 6 divisors (see below), whose sum is σ = 34318873100582. Its totient is φ = 28384030383720.

The previous prime is 31222433422211. The next prime is 31222433422231.

It is a happy number.

31222433422213 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 19546496584164 + 11675936838049 = 4421142^2 + 3417007^2 .

It is not a de Polignac number, because 31222433422213 - 2¹ = 31222433422211 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 (31222433422211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129018319806 + ... + 129018320047.

Almost surely, 2^{31222433422213} is an apocalyptic number.

It is an amenable number.

31222433422213 is a deficient number, since it is larger than the sum of its proper divisors (3096439678369).

31222433422213 is a wasteful number, since it uses less digits than its factorization.

31222433422213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258036639875 (or 258036639864 counting only the distinct ones).

The product of its digits is 82944, while the sum is 34.

It can be divided in two parts, 3122243 and 3422213, that added together give a palindrome (6544456).

The spelling of 31222433422213 in words is "thirty-one trillion, two hundred twenty-two billion, four hundred thirty-three million, four hundred twenty-two thousand, two hundred thirteen".