22204244220 has 24 divisors (see below), whose sum is σ = 62171883984. Its totient is φ = 5921131776.

The previous prime is 22204244173. The next prime is 22204244243. The reversal of 22204244220 is 2244240222.

It is a super-2 number, since 2×22204244220² (a number of 21 digits) contains 22 as substring.

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, 185035309 + ... + 185035428.

It is an arithmetic number, because the mean of its divisors is an integer number (2590495166).

Almost surely, 2^22204244220 is an apocalyptic number.

22204244220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22204244220 is an abundant number, since it is smaller than the sum of its proper divisors (39967639764).

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

22204244220 is a wasteful number, since it uses less digits than its factorization.

22204244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370070749 (or 370070747 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22204244220 its reverse (2244240222), we get a palindrome (24448484442).

The spelling of 22204244220 in words is "twenty-two billion, two hundred four million, two hundred forty-four thousand, two hundred twenty".