2100100899 has 16 divisors (see below), whose sum is σ = 3192914592. Its totient is φ = 1216347648.

The previous prime is 2100100897. The next prime is 2100100901. The reversal of 2100100899 is 9980010012.

It is an interprime number because it is at equal distance from previous prime (2100100897) and next prime (2100100901).

It is not a de Polignac number, because 2100100899 - 2¹ = 2100100897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100100897) 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, 1583124 + ... + 1584449.

It is an arithmetic number, because the mean of its divisors is an integer number (199557162).

Almost surely, 2^2100100899 is an apocalyptic number.

2100100899 is a deficient number, since it is larger than the sum of its proper divisors (1092813693).

2100100899 is a wasteful number, since it uses less digits than its factorization.

2100100899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167606.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2100100899 is about 45826.8578346803. The cubic root of 2100100899 is about 1280.5996740491.

The spelling of 2100100899 in words is "two billion, one hundred million, one hundred thousand, eight hundred ninety-nine".