22020311100 has 72 divisors (see below), whose sum is σ = 64307634048. Its totient is φ = 5817195200.

The previous prime is 22020311083. The next prime is 22020311129. The reversal of 22020311100 is 111302022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310896 + ... + 375095.

It is an arithmetic number, because the mean of its divisors is an integer number (893161584).

Almost surely, 2^22020311100 is an apocalyptic number.

22020311100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020311100 is an abundant number, since it is smaller than the sum of its proper divisors (42287322948).

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

22020311100 is a wasteful number, since it uses less digits than its factorization.

22020311100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686115 (or 686108 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 22020311100 its reverse (111302022), we get a palindrome (22131613122).

The spelling of 22020311100 in words is "twenty-two billion, twenty million, three hundred eleven thousand, one hundred".