120012100099965 has 32 divisors (see below), whose sum is σ = 213357477672960. Its totient is φ = 64005663471552.

The previous prime is 120012100099939. The next prime is 120012100100023. The reversal of 120012100099965 is 569990001210021.

It is not a de Polignac number, because 120012100099965 - 2⁴² = 115614053588861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 120012100099965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5576292 + ... + 16465698.

It is an arithmetic number, because the mean of its divisors is an integer number (6667421177280).

Almost surely, 2^{120012100099965} is an apocalyptic number.

120012100099965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120012100099965 is a deficient number, since it is larger than the sum of its proper divisors (93345377572995).

120012100099965 is a wasteful number, since it uses less digits than its factorization.

120012100099965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971058 (or 10971052 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The spelling of 120012100099965 in words is "one hundred twenty trillion, twelve billion, one hundred million, ninety-nine thousand, nine hundred sixty-five".