12100200021100 has 18 divisors (see below), whose sum is σ = 26257434046004. Its totient is φ = 4840080008400.

The previous prime is 12100200021089. The next prime is 12100200021187. The reversal of 12100200021100 is 112000200121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60501000006 + ... + 60501000205.

Almost surely, 2^{12100200021100} is an apocalyptic number.

12100200021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100200021100 is an abundant number, since it is smaller than the sum of its proper divisors (14157234024904).

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

12100200021100 is a wasteful number, since it uses less digits than its factorization.

12100200021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121002000225 (or 121002000218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12100200021100 its reverse (112000200121), we get a palindrome (12212200221221).

It can be divided in two parts, 12100200021 and 100, that added together give a palindrome (12100200121).

The spelling of 12100200021100 in words is "twelve trillion, one hundred billion, two hundred million, twenty-one thousand, one hundred".