12015455020100 has 36 divisors (see below), whose sum is σ = 29798328451584. Its totient is φ = 4119584578080.

The previous prime is 12015455020091. The next prime is 12015455020111. The reversal of 12015455020100 is 102055451021.

It is a self number, because there is not a number n which added to its sum of digits gives 12015455020100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8582467172 + ... + 8582468571.

Almost surely, 2^{12015455020100} is an apocalyptic number.

12015455020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12015455020100 is an abundant number, since it is smaller than the sum of its proper divisors (17782873431484).

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

12015455020100 is a wasteful number, since it uses less digits than its factorization.

12015455020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17164935764 (or 17164935757 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 12015455020100 in words is "twelve trillion, fifteen billion, four hundred fifty-five million, twenty thousand, one hundred".