22212022031 has 4 divisors (see below), whose sum is σ = 22212962352. Its totient is φ = 22211081712.

The previous prime is 22212021989. The next prime is 22212022033. The reversal of 22212022031 is 13022021222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212022031 is a prime.

It is a super-2 number, since 2×22212022031² (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 (22212022033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433790 + ... + 482283.

It is an arithmetic number, because the mean of its divisors is an integer number (5553240588).

Almost surely, 2^22212022031 is an apocalyptic number.

22212022031 is a deficient number, since it is larger than the sum of its proper divisors (940321).

22212022031 is an equidigital number, since it uses as much as digits as its factorization.

22212022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940320.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22212022031 its reverse (13022021222), we get a palindrome (35234043253).

The spelling of 22212022031 in words is "twenty-two billion, two hundred twelve million, twenty-two thousand, thirty-one".