2121113112 has 64 divisors (see below), whose sum is σ = 5392380000. Its totient is φ = 695153664.

The previous prime is 2121113101. The next prime is 2121113129. The reversal of 2121113112 is 2113111212.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2121113091 and 2121113100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609714 + ... + 613182.

Almost surely, 2^2121113112 is an apocalyptic number.

It is an amenable number.

2121113112 is an abundant number, since it is smaller than the sum of its proper divisors (3271266888).

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

2121113112 is a wasteful number, since it uses less digits than its factorization.

2121113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900 (or 3896 counting only the distinct ones).

The product of its digits is 24, while the sum is 15.

The square root of 2121113112 is about 46055.5437705386. The cubic root of 2121113112 is about 1284.8564515367.

Adding to 2121113112 its reverse (2113111212), we get a palindrome (4234224324).

The spelling of 2121113112 in words is "two billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred twelve".