12101021002116 has 72 divisors (see below), whose sum is σ = 30684379864320. Its totient is φ = 4021075146816.

The previous prime is 12101021002043. The next prime is 12101021002117. The reversal of 12101021002116 is 61120012010121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12101021002117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14384815 + ... + 15202793.

It is an arithmetic number, because the mean of its divisors is an integer number (426171942560).

Almost surely, 2^{12101021002116} is an apocalyptic number.

It is an amenable number.

12101021002116 is an abundant number, since it is smaller than the sum of its proper divisors (18583358862204).

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

12101021002116 is a wasteful number, since it uses less digits than its factorization.

12101021002116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819273 (or 819268 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12101021002116 its reverse (61120012010121), we get a palindrome (73221033012237).

The spelling of 12101021002116 in words is "twelve trillion, one hundred one billion, twenty-one million, two thousand, one hundred sixteen".