22212022100 has 36 divisors (see below), whose sum is σ = 48668072544. Its totient is φ = 8798544480.

The previous prime is 22212022097. The next prime is 22212022127. The reversal of 22212022100 is 122021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1067954 + ... + 1088553.

It is an arithmetic number, because the mean of its divisors is an integer number (1351890904).

Almost surely, 2^22212022100 is an apocalyptic number.

22212022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212022100 is an abundant number, since it is smaller than the sum of its proper divisors (26456050444).

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

22212022100 is a wasteful number, since it uses less digits than its factorization.

22212022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156624 (or 2156617 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22212022100 its reverse (122021222), we get a palindrome (22334043322).

The spelling of 22212022100 in words is "twenty-two billion, two hundred twelve million, twenty-two thousand, one hundred".