2112212231 has 2 divisors, whose sum is σ = 2112212232. Its totient is φ = 2112212230.

The previous prime is 2112212173. The next prime is 2112212237. The reversal of 2112212231 is 1322122112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112212231 - 2¹⁰ = 2112211207 is a prime.

It is a super-2 number, since 2×2112212231² = 8922881017571994722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112212237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056106115 + 1056106116.

It is an arithmetic number, because the mean of its divisors is an integer number (1056106116).

Almost surely, 2^2112212231 is an apocalyptic number.

2112212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112212231 is an equidigital number, since it uses as much as digits as its factorization.

2112212231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 2112212231 is about 45958.8101564869. The cubic root of 2112212231 is about 1283.0567064565.

Adding to 2112212231 its reverse (1322122112), we get a palindrome (3434334343).

The spelling of 2112212231 in words is "two billion, one hundred twelve million, two hundred twelve thousand, two hundred thirty-one".