22031012013213 has 32 divisors (see below), whose sum is σ = 35298087340032. Its totient is φ = 11949873249600.

The previous prime is 22031012013203. The next prime is 22031012013233. The reversal of 22031012013213 is 31231021013022.

It is not a de Polignac number, because 22031012013213 - 2²⁰ = 22031010964637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 22031012013213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031012013203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174031618 + ... + 174158163.

It is an arithmetic number, because the mean of its divisors is an integer number (1103065229376).

Almost surely, 2^{22031012013213} is an apocalyptic number.

22031012013213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22031012013213 is a deficient number, since it is larger than the sum of its proper divisors (13267075326819).

22031012013213 is a wasteful number, since it uses less digits than its factorization.

22031012013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348189945.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 22031012013213 its reverse (31231021013022), we get a palindrome (53262033026235).

The spelling of 22031012013213 in words is "twenty-two trillion, thirty-one billion, twelve million, thirteen thousand, two hundred thirteen".