2112212313 has 6 divisors (see below), whose sum is σ = 3050973354. Its totient is φ = 1408141536.

The previous prime is 2112212281. The next prime is 2112212321. The reversal of 2112212313 is 3132122112.

2112212313 is a `hidden beast` number, since 211 + 221 + 231 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2112045849 + 166464 = 45957^2 + 408^2 .

It is not a de Polignac number, because 2112212313 - 2⁵ = 2112212281 is a prime.

It is a super-2 number, since 2×2112212313² = 8922881710377619938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112212393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117345120 + ... + 117345137.

It is an arithmetic number, because the mean of its divisors is an integer number (508495559).

Almost surely, 2^2112212313 is an apocalyptic number.

It is an amenable number.

2112212313 is a deficient number, since it is larger than the sum of its proper divisors (938761041).

2112212313 is a wasteful number, since it uses less digits than its factorization.

2112212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234690263 (or 234690260 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2112212313 is about 45958.8110485900. The cubic root of 2112212313 is about 1283.0567230601.

Adding to 2112212313 its reverse (3132122112), we get a palindrome (5244334425).

The spelling of 2112212313 in words is "two billion, one hundred twelve million, two hundred twelve thousand, three hundred thirteen".