12012100999 has 8 divisors (see below), whose sum is σ = 12663410688. Its totient is φ = 11377280280.

The previous prime is 12012100967. The next prime is 12012101011. The reversal of 12012100999 is 99900121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012100999 - 2⁵ = 12012100967 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 (12012100909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120747 + ... + 4123660.

It is an arithmetic number, because the mean of its divisors is an integer number (1582926336).

Almost surely, 2^12012100999 is an apocalyptic number.

12012100999 is a deficient number, since it is larger than the sum of its proper divisors (651309689).

12012100999 is an equidigital number, since it uses as much as digits as its factorization.

12012100999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244485.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 12012100999 in words is "twelve billion, twelve million, one hundred thousand, nine hundred ninety-nine".