22020221100 has 36 divisors (see below), whose sum is σ = 63711840584. Its totient is φ = 5872058880.

The previous prime is 22020221099. The next prime is 22020221143. The reversal of 22020221100 is 112202022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 11 ways as a sum of consecutive naturals, for example, 36700069 + ... + 36700668.

Almost surely, 2^22020221100 is an apocalyptic number.

22020221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020221100 is an abundant number, since it is smaller than the sum of its proper divisors (41691619484).

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

22020221100 is a wasteful number, since it uses less digits than its factorization.

22020221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73400754 (or 73400747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22020221100 its reverse (112202022), we get a palindrome (22132423122).

The spelling of 22020221100 in words is "twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred".