115222231 has 2 divisors, whose sum is σ = 115222232. Its totient is φ = 115222230.

The previous prime is 115222223. The next prime is 115222267. The reversal of 115222231 is 132222511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115222231 - 2³ = 115222223 is a prime.

It is a super-2 number, since 2×115222231² = 26552325033234722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115222199 and 115222208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115222271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57611115 + 57611116.

It is an arithmetic number, because the mean of its divisors is an integer number (57611116).

Almost surely, 2^115222231 is an apocalyptic number.

115222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

115222231 is an equidigital number, since it uses as much as digits as its factorization.

115222231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 115222231 is about 10734.1618676075. The cubic root of 115222231 is about 486.6074570384.

Adding to 115222231 its reverse (132222511), we get a palindrome (247444742).

The spelling of 115222231 in words is "one hundred fifteen million, two hundred twenty-two thousand, two hundred thirty-one".