2002012100999 has 16 divisors (see below), whose sum is σ = 2057354959296. Its totient is φ = 1946981836800.

The previous prime is 2002012100939. The next prime is 2002012101007. The reversal of 2002012100999 is 9990012102002.

It is a cyclic number.

It is not a de Polignac number, because 2002012100999 - 2⁴⁰ = 902500473223 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 (2002012100929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82986659 + ... + 83010779.

It is an arithmetic number, because the mean of its divisors is an integer number (128584684956).

Almost surely, 2^{2002012100999} is an apocalyptic number.

2002012100999 is a deficient number, since it is larger than the sum of its proper divisors (55342858297).

2002012100999 is a wasteful number, since it uses less digits than its factorization.

2002012100999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30506.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 2002012100999 in words is "two trillion, two billion, twelve million, one hundred thousand, nine hundred ninety-nine".