22212320031 has 24 divisors (see below), whose sum is σ = 35072593920. Its totient is φ = 13434565200.

The previous prime is 22212320027. The next prime is 22212320047. The reversal of 22212320031 is 13002321222.

It is not a de Polignac number, because 22212320031 - 2² = 22212320027 is a prime.

It is a super-2 number, since 2×22212320031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22212319986 and 22212320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212320131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179871 + ... + 277088.

It is an arithmetic number, because the mean of its divisors is an integer number (1461358080).

Almost surely, 2^22212320031 is an apocalyptic number.

22212320031 is a deficient number, since it is larger than the sum of its proper divisors (12860273889).

22212320031 is a wasteful number, since it uses less digits than its factorization.

22212320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457467 (or 457464 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22212320031 its reverse (13002321222), we get a palindrome (35214641253).

It can be divided in two parts, 22212 and 320031, that added together give a palindrome (342243).

The spelling of 22212320031 in words is "twenty-two billion, two hundred twelve million, three hundred twenty thousand, thirty-one".