22100202020 has 24 divisors (see below), whose sum is σ = 49980457464. Its totient is φ = 8160074496.

The previous prime is 22100201983. The next prime is 22100202037. The reversal of 22100202020 is 2020200122.

It can be written as a sum of positive squares in 4 ways, for example, as 5226711616 + 16873490404 = 72296^2 + 129898^2 .

22100202020 is a modest number, since divided by 202020 gives 22100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22100201992 and 22100202010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42500129 + ... + 42500648.

It is an arithmetic number, because the mean of its divisors is an integer number (2082519061).

Almost surely, 2^22100202020 is an apocalyptic number.

22100202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100202020 is an abundant number, since it is smaller than the sum of its proper divisors (27880255444).

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

22100202020 is a wasteful number, since it uses less digits than its factorization.

22100202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85000799 (or 85000797 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22100202020 its reverse (2020200122), we get a palindrome (24120402142).

The spelling of 22100202020 in words is "twenty-two billion, one hundred million, two hundred two thousand, twenty".