12020001299979 has 128 divisors (see below), whose sum is σ = 17544845058048. Its totient is φ = 7299952450560.

The previous prime is 12020001299953. The next prime is 12020001299981. The reversal of 12020001299979 is 97999210002021.

It is not a de Polignac number, because 12020001299979 - 2²⁰ = 12020000251403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12020001399979) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12612802567 + ... + 12612803519.

It is an arithmetic number, because the mean of its divisors is an integer number (137069102016).

Almost surely, 2^{12020001299979} is an apocalyptic number.

12020001299979 is a deficient number, since it is larger than the sum of its proper divisors (5524843758069).

12020001299979 is a wasteful number, since it uses less digits than its factorization.

12020001299979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617.

The product of its (nonzero) digits is 367416, while the sum is 51.

The spelling of 12020001299979 in words is "twelve trillion, twenty billion, one million, two hundred ninety-nine thousand, nine hundred seventy-nine".