12102012032100 has 72 divisors (see below), whose sum is σ = 35017534026048. Its totient is φ = 3226983926400.

The previous prime is 12102012032051. The next prime is 12102012032119. The reversal of 12102012032100 is 123021020121.

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 12102012032100.

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, 3075985 + ... + 5802215.

Almost surely, 2^{12102012032100} is an apocalyptic number.

12102012032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102012032100 is an abundant number, since it is smaller than the sum of its proper divisors (22915521993948).

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

12102012032100 is a wasteful number, since it uses less digits than its factorization.

12102012032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741045 (or 2741038 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12102012032100 its reverse (123021020121), we get a palindrome (12225033052221).

The spelling of 12102012032100 in words is "twelve trillion, one hundred two billion, twelve million, thirty-two thousand, one hundred".