2120102099 has 12 divisors (see below), whose sum is σ = 2239411320. Its totient is φ = 2006856000.

The previous prime is 2120102081. The next prime is 2120102107. The reversal of 2120102099 is 9902010212.

It is a happy number.

It is not a de Polignac number, because 2120102099 - 2¹⁶ = 2120036563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120102029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 811307 + ... + 813915.

It is an arithmetic number, because the mean of its divisors is an integer number (186617610).

Almost surely, 2^2120102099 is an apocalyptic number.

2120102099 is a deficient number, since it is larger than the sum of its proper divisors (119309221).

2120102099 is a wasteful number, since it uses less digits than its factorization.

2120102099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898 (or 4879 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2120102099 is about 46044.5664438270. The cubic root of 2120102099 is about 1284.6522799612.

The spelling of 2120102099 in words is "two billion, one hundred twenty million, one hundred two thousand, ninety-nine".