22312022020 has 12 divisors (see below), whose sum is σ = 46855246284. Its totient is φ = 8924808800.

The previous prime is 22312021997. The next prime is 22312022023. The reversal of 22312022020 is 2022021322.

It can be written as a sum of positive squares in 2 ways, for example, as 10054875076 + 12257146944 = 100274^2 + 110712^2 .

It is a super-3 number, since 3×22312022020³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22312021985 and 22312022003.

It is not an unprimeable number, because it can be changed into a prime (22312022023) 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, 557800531 + ... + 557800570.

It is an arithmetic number, because the mean of its divisors is an integer number (3904603857).

Almost surely, 2^22312022020 is an apocalyptic number.

22312022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312022020 is an abundant number, since it is smaller than the sum of its proper divisors (24543224264).

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

22312022020 is a wasteful number, since it uses less digits than its factorization.

22312022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115601110 (or 1115601108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22312022020 its reverse (2022021322), we get a palindrome (24334043342).

The spelling of 22312022020 in words is "twenty-two billion, three hundred twelve million, twenty-two thousand, twenty".