12122011022100 has 72 divisors (see below), whose sum is σ = 40083449786688. Its totient is φ = 2770745376000.

The previous prime is 12122011022089. The next prime is 12122011022137. The reversal of 12122011022100 is 122011022121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12122011022100.

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, 2886191001 + ... + 2886195200.

Almost surely, 2^{12122011022100} is an apocalyptic number.

12122011022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122011022100 is an abundant number, since it is smaller than the sum of its proper divisors (27961438764588).

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

12122011022100 is a wasteful number, since it uses less digits than its factorization.

12122011022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772386225 (or 5772386218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122011022100 its reverse (122011022121), we get a palindrome (12244022044221).

The spelling of 12122011022100 in words is "twelve trillion, one hundred twenty-two billion, eleven million, twenty-two thousand, one hundred".