2112112231 has 2 divisors, whose sum is σ = 2112112232. Its totient is φ = 2112112230.

The previous prime is 2112112229. The next prime is 2112112237. The reversal of 2112112231 is 1322112112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112112231 - 2¹ = 2112112229 is a prime.

It is a super-2 number, since 2×2112112231² = 8922036152679594722, which contains 22 as substring.

Together with 2112112229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112112237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056056115 + 1056056116.

It is an arithmetic number, because the mean of its divisors is an integer number (1056056116).

Almost surely, 2^2112112231 is an apocalyptic number.

2112112231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112112231 is an equidigital number, since it uses as much as digits as its factorization.

2112112231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 16.

The square root of 2112112231 is about 45957.7222129209. The cubic root of 2112112231 is about 1283.0364579080.

Adding to 2112112231 its reverse (1322112112), we get a palindrome (3434224343).

The spelling of 2112112231 in words is "two billion, one hundred twelve million, one hundred twelve thousand, two hundred thirty-one".