22012202020 has 12 divisors (see below), whose sum is σ = 46225624284. Its totient is φ = 8804880800.

The previous prime is 22012201979. The next prime is 22012202027. The reversal of 22012202020 is 2020221022.

It can be written as a sum of positive squares in 2 ways, for example, as 17286464484 + 4725737536 = 131478^2 + 68744^2 .

It is not an unprimeable number, because it can be changed into a prime (22012202027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550305031 + ... + 550305070.

It is an arithmetic number, because the mean of its divisors is an integer number (3852135357).

Almost surely, 2^22012202020 is an apocalyptic number.

22012202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012202020 is an abundant number, since it is smaller than the sum of its proper divisors (24213422264).

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

22012202020 is a wasteful number, since it uses less digits than its factorization.

22012202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100610110 (or 1100610108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22012202020 its reverse (2020221022), we get a palindrome (24032423042).

The spelling of 22012202020 in words is "twenty-two billion, twelve million, two hundred two thousand, twenty".