2120100112 has 20 divisors (see below), whose sum is σ = 4423670860. Its totient is φ = 978507648.

The previous prime is 2120100109. The next prime is 2120100131. The reversal of 2120100112 is 2110010212.

It can be written as a sum of positive squares in 2 ways, for example, as 320983056 + 1799117056 = 17916^2 + 42416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5096187 + ... + 5096602.

It is an arithmetic number, because the mean of its divisors is an integer number (221183543).

Almost surely, 2^2120100112 is an apocalyptic number.

It is an amenable number.

2120100112 is an abundant number, since it is smaller than the sum of its proper divisors (2303570748).

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

2120100112 is a wasteful number, since it uses less digits than its factorization.

2120100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192810 (or 10192804 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2120100112 is about 46044.5448669004. The cubic root of 2120100112 is about 1284.6518786276.

Adding to 2120100112 its reverse (2110010212), we get a palindrome (4230110324).

It can be divided in two parts, 2120100 and 112, that added together give a palindrome (2120212).

The spelling of 2120100112 in words is "two billion, one hundred twenty million, one hundred thousand, one hundred twelve".