12102100211100 has 72 divisors (see below), whose sum is σ = 35072531863600. Its totient is φ = 3221962030080.

The previous prime is 12102100211063. The next prime is 12102100211171. The reversal of 12102100211100 is 111200120121.

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 23 ways as a sum of consecutive naturals, for example, 32720125 + ... + 33087924.

Almost surely, 2^{12102100211100} is an apocalyptic number.

12102100211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102100211100 is an abundant number, since it is smaller than the sum of its proper divisors (22970431652500).

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

12102100211100 is a wasteful number, since it uses less digits than its factorization.

12102100211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65808679 (or 65808672 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12102100211100 its reverse (111200120121), we get a palindrome (12213300331221).

The spelling of 12102100211100 in words is "twelve trillion, one hundred two billion, one hundred million, two hundred eleven thousand, one hundred".