22101200020 has 24 divisors (see below), whose sum is σ = 48430456704. Its totient is φ = 8456111136.

The previous prime is 22101199987. The next prime is 22101200039. The reversal of 22101200020 is 2000210122.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 24022584 + ... + 24023503.

It is an arithmetic number, because the mean of its divisors is an integer number (2017935696).

Almost surely, 2^22101200020 is an apocalyptic number.

22101200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101200020 is an abundant number, since it is smaller than the sum of its proper divisors (26329256684).

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

22101200020 is a wasteful number, since it uses less digits than its factorization.

22101200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48046119 (or 48046117 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22101200020 its reverse (2000210122), we get a palindrome (24101410142).

The spelling of 22101200020 in words is "twenty-two billion, one hundred one million, two hundred thousand, twenty".