12010205999 has 4 divisors (see below), whose sum is σ = 13102042920. Its totient is φ = 10918369080.

The previous prime is 12010205993. The next prime is 12010206007. The reversal of 12010205999 is 99950201021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12010205999 - 2²⁸ = 11741770543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010205993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545918444 + ... + 545918465.

It is an arithmetic number, because the mean of its divisors is an integer number (3275510730).

Almost surely, 2^12010205999 is an apocalyptic number.

12010205999 is a deficient number, since it is larger than the sum of its proper divisors (1091836921).

12010205999 is a wasteful number, since it uses less digits than its factorization.

12010205999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091836920.

The product of its (nonzero) digits is 14580, while the sum is 38.

The spelling of 12010205999 in words is "twelve billion, ten million, two hundred five thousand, nine hundred ninety-nine".