22204400020 has 24 divisors (see below), whose sum is σ = 50868262368. Its totient is φ = 8074327200.

The previous prime is 22204400011. The next prime is 22204400033. The reversal of 22204400020 is 2000440222.

It is a junction number, because it is equal to n+sod(n) for n = 22204399967 and 22204400003.

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, 50464326 + ... + 50464765.

It is an arithmetic number, because the mean of its divisors is an integer number (2119510932).

Almost surely, 2^22204400020 is an apocalyptic number.

22204400020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22204400020 is an abundant number, since it is smaller than the sum of its proper divisors (28663862348).

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

22204400020 is a wasteful number, since it uses less digits than its factorization.

22204400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100929111 (or 100929109 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22204400020 its reverse (2000440222), we get a palindrome (24204840242).

It can be divided in two parts, 22204 and 400020, that added together give a palindrome (422224).

The spelling of 22204400020 in words is "twenty-two billion, two hundred four million, four hundred thousand, twenty".