12122003100 has 36 divisors (see below), whose sum is σ = 35072996504. Its totient is φ = 3232534080.

The previous prime is 12122003087. The next prime is 12122003123. The reversal of 12122003100 is 130022121.

It is a super-2 number, since 2×12122003100² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 20203039 + ... + 20203638.

Almost surely, 2^12122003100 is an apocalyptic number.

12122003100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122003100 is an abundant number, since it is smaller than the sum of its proper divisors (22950993404).

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

12122003100 is a wasteful number, since it uses less digits than its factorization.

12122003100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40406694 (or 40406687 counting only the distinct ones).

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

Adding to 12122003100 its reverse (130022121), we get a palindrome (12252025221).

The spelling of 12122003100 in words is "twelve billion, one hundred twenty-two million, three thousand, one hundred".