2112001000999 has 4 divisors (see below), whose sum is σ = 2223158948440. Its totient is φ = 2000843053560.

The previous prime is 2112001000981. The next prime is 2112001001003. The reversal of 2112001000999 is 9990001002112.

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 2112001000999 - 2¹⁹ = 2112000476711 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 (2112001000919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55578973692 + ... + 55578973729.

It is an arithmetic number, because the mean of its divisors is an integer number (555789737110).

Almost surely, 2^{2112001000999} is an apocalyptic number.

2112001000999 is a deficient number, since it is larger than the sum of its proper divisors (111157947441).

2112001000999 is a wasteful number, since it uses less digits than its factorization.

2112001000999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111157947440.

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

The spelling of 2112001000999 in words is "two trillion, one hundred twelve billion, one million, nine hundred ninety-nine", and thus it is an aban number.