2120799885 has 16 divisors (see below), whose sum is σ = 3394617984. Its totient is φ = 1130647232.

The previous prime is 2120799883. The next prime is 2120799887. The reversal of 2120799885 is 5889970212.

It is an interprime number because it is at equal distance from previous prime (2120799883) and next prime (2120799887).

It is a cyclic number.

It is not a de Polignac number, because 2120799885 - 2¹ = 2120799883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120799883) 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, 13399 + ... + 66491.

It is an arithmetic number, because the mean of its divisors is an integer number (212163624).

Almost surely, 2^2120799885 is an apocalyptic number.

It is an amenable number.

2120799885 is a deficient number, since it is larger than the sum of its proper divisors (1273818099).

2120799885 is a wasteful number, since it uses less digits than its factorization.

2120799885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55764.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 2120799885 is about 46052.1431097403. The cubic root of 2120799885 is about 1284.7932030563.

The spelling of 2120799885 in words is "two billion, one hundred twenty million, seven hundred ninety-nine thousand, eight hundred eighty-five".