22012131100 has 36 divisors (see below), whose sum is σ = 47775940408. Its totient is φ = 8803080000.

The previous prime is 22012131091. The next prime is 22012131103. The reversal of 22012131100 is 113121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012131103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550795 + ... + 589405.

Almost surely, 2^22012131100 is an apocalyptic number.

22012131100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012131100 is an abundant number, since it is smaller than the sum of its proper divisors (25763809308).

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

22012131100 is a wasteful number, since it uses less digits than its factorization.

22012131100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44326 (or 44319 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22012131100 its reverse (113121022), we get a palindrome (22125252122).

The spelling of 22012131100 in words is "twenty-two billion, twelve million, one hundred thirty-one thousand, one hundred".