2111299888 has 20 divisors (see below), whose sum is σ = 4222600768. Its totient is φ = 1021596480.

The previous prime is 2111299877. The next prime is 2111299889. The reversal of 2111299888 is 8889921112.

It is a happy number.

2111299888 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2111299889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2127831 + ... + 2128822.

Almost surely, 2^2111299888 is an apocalyptic number.

It is an amenable number.

2111299888 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111299888 is a wasteful number, since it uses less digits than its factorization.

2111299888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256692 (or 4256686 counting only the distinct ones).

The product of its digits is 165888, while the sum is 49.

The square root of 2111299888 is about 45948.8834249539. The cubic root of 2111299888 is about 1282.8719465528.

The spelling of 2111299888 in words is "two billion, one hundred eleven million, two hundred ninety-nine thousand, eight hundred eighty-eight".