12101000012100 has 108 divisors (see below), whose sum is σ = 39153457907200. Its totient is φ = 3122838705600.

The previous prime is 12101000012089. The next prime is 12101000012141. The reversal of 12101000012100 is 121000010121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 216835900 + ... + 216891699.

Almost surely, 2^{12101000012100} is an apocalyptic number.

12101000012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101000012100 is an abundant number, since it is smaller than the sum of its proper divisors (27052457895100).

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

12101000012100 is a wasteful number, since it uses less digits than its factorization.

12101000012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433727650 (or 433727640 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12101000012100 its reverse (121000010121), we get a palindrome (12222000022221).

The spelling of 12101000012100 in words is "twelve trillion, one hundred one billion, twelve thousand, one hundred".