2112223231 has 2 divisors, whose sum is σ = 2112223232. Its totient is φ = 2112223230.

The previous prime is 2112223177. The next prime is 2112223241. The reversal of 2112223231 is 1323222112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112223231 - 2²¹ = 2110126079 is a prime.

It is a super-2 number, since 2×2112223231² = 8922973955152158722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112223199 and 2112223208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112223241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056111615 + 1056111616.

It is an arithmetic number, because the mean of its divisors is an integer number (1056111616).

Almost surely, 2^2112223231 is an apocalyptic number.

2112223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112223231 is an equidigital number, since it uses as much as digits as its factorization.

2112223231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 2112223231 is about 45958.9298287068. The cubic root of 2112223231 is about 1283.0589337578.

Adding to 2112223231 its reverse (1323222112), we get a palindrome (3435445343).

The spelling of 2112223231 in words is "two billion, one hundred twelve million, two hundred twenty-three thousand, two hundred thirty-one".