22020131231022 has 16 divisors (see below), whose sum is σ = 44046574751952. Its totient is φ = 7338991695360.

The previous prime is 22020131231017. The next prime is 22020131231093. The reversal of 22020131231022 is 22013213102022.

It is a super-2 number, since 2×22020131231022² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22020131231022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262966729 + ... + 263050452.

It is an arithmetic number, because the mean of its divisors is an integer number (2752910921997).

Almost surely, 2^{22020131231022} is an apocalyptic number.

22020131231022 is an abundant number, since it is smaller than the sum of its proper divisors (22026443520930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020131231022 is a wasteful number, since it uses less digits than its factorization.

22020131231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526024163.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22020131231022 its reverse (22013213102022), we get a palindrome (44033344333044).

The spelling of 22020131231022 in words is "twenty-two trillion, twenty billion, one hundred thirty-one million, two hundred thirty-one thousand, twenty-two".