22212231031 has 4 divisors (see below), whose sum is σ = 22220806464. Its totient is φ = 22203655600.

The previous prime is 22212230939. The next prime is 22212231037. The reversal of 22212231031 is 13013221222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22212231031 - 2⁷ = 22212230903 is a prime.

It is a super-2 number, since 2×22212231031² (a number of 21 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 (22212231037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4283830 + ... + 4289011.

It is an arithmetic number, because the mean of its divisors is an integer number (5555201616).

Almost surely, 2^22212231031 is an apocalyptic number.

22212231031 is a deficient number, since it is larger than the sum of its proper divisors (8575433).

22212231031 is an equidigital number, since it uses as much as digits as its factorization.

22212231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575432.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22212231031 its reverse (13013221222), we get a palindrome (35225452253).

The spelling of 22212231031 in words is "twenty-two billion, two hundred twelve million, two hundred thirty-one thousand, thirty-one".