2112122231 has 2 divisors, whose sum is σ = 2112122232. Its totient is φ = 2112122230.

The previous prime is 2112122209. The next prime is 2112122249. The reversal of 2112122231 is 1322212112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2112122231 - 2⁶ = 2112122167 is a prime.

It is a super-2 number, since 2×2112122231² = 8922120637368834722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112122261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056061115 + 1056061116.

It is an arithmetic number, because the mean of its divisors is an integer number (1056061116).

Almost surely, 2^2112122231 is an apocalyptic number.

2112122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112122231 is an equidigital number, since it uses as much as digits as its factorization.

2112122231 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 2112122231 is about 45957.8310084364. The cubic root of 2112122231 is about 1283.0384827916.

Adding to 2112122231 its reverse (1322212112), we get a palindrome (3434334343).

The spelling of 2112122231 in words is "two billion, one hundred twelve million, one hundred twenty-two thousand, two hundred thirty-one".