2112013121 has 8 divisors (see below), whose sum is σ = 2148283200. Its totient is φ = 2076044400.

The previous prime is 2112013117. The next prime is 2112013133. The reversal of 2112013121 is 1213102112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112013121 - 2² = 2112013117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112013096 and 2112013105.

It is not an unprimeable number, because it can be changed into a prime (2112013171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61181 + ... + 89258.

It is an arithmetic number, because the mean of its divisors is an integer number (268535400).

Almost surely, 2^2112013121 is an apocalyptic number.

It is an amenable number.

2112013121 is a deficient number, since it is larger than the sum of its proper divisors (36270079).

2112013121 is a wasteful number, since it uses less digits than its factorization.

2112013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150679.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2112013121 is about 45956.6439266402. The cubic root of 2112013121 is about 1283.0163889409.

Adding to 2112013121 its reverse (1213102112), we get a palindrome (3325115233).

The spelling of 2112013121 in words is "two billion, one hundred twelve million, thirteen thousand, one hundred twenty-one".