2102111092 has 12 divisors (see below), whose sum is σ = 3679256196. Its totient is φ = 1050895040.

The previous prime is 2102111087. The next prime is 2102111093. The reversal of 2102111092 is 2901112012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 88435216 + 2013675876 = 9404^2 + 44874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102111093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7759 + ... + 65302.

It is an arithmetic number, because the mean of its divisors is an integer number (306604683).

Almost surely, 2^2102111092 is an apocalyptic number.

It is an amenable number.

2102111092 is a deficient number, since it is larger than the sum of its proper divisors (1577145104).

2102111092 is a wasteful number, since it uses less digits than its factorization.

2102111092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80258 (or 80256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 2102111092 is about 45848.7850656918. The cubic root of 2102111092 is about 1281.0081356282.

The spelling of 2102111092 in words is "two billion, one hundred two million, one hundred eleven thousand, ninety-two".