2121110113 has 8 divisors (see below), whose sum is σ = 2193156000. Its totient is φ = 2050031520.

The previous prime is 2121110059. The next prime is 2121110129. The reversal of 2121110113 is 3110111212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121110113 is a prime.

It is a super-2 number, since 2×2121110113² = 8998216222941745538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121110093 and 2121110102.

It is not an unprimeable number, because it can be changed into a prime (2121110183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237363 + ... + 246136.

It is an arithmetic number, because the mean of its divisors is an integer number (274144500).

Almost surely, 2^2121110113 is an apocalyptic number.

It is an amenable number.

2121110113 is a deficient number, since it is larger than the sum of its proper divisors (72045887).

2121110113 is a wasteful number, since it uses less digits than its factorization.

2121110113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483647.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2121110113 is about 46055.5112120146. The cubic root of 2121110113 is about 1284.8558459920.

Adding to 2121110113 its reverse (3110111212), we get a palindrome (5231221325).

The spelling of 2121110113 in words is "two billion, one hundred twenty-one million, one hundred ten thousand, one hundred thirteen".