222430231 has 2 divisors, whose sum is σ = 222430232. Its totient is φ = 222430230.

The previous prime is 222430223. The next prime is 222430253. The reversal of 222430231 is 132034222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222430231 - 2³ = 222430223 is a prime.

It is a super-2 number, since 2×222430231² = 98950415325426722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222430199 and 222430208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222433231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111215115 + 111215116.

It is an arithmetic number, because the mean of its divisors is an integer number (111215116).

Almost surely, 2^222430231 is an apocalyptic number.

222430231 is a deficient number, since it is larger than the sum of its proper divisors (1).

222430231 is an equidigital number, since it uses as much as digits as its factorization.

222430231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 222430231 is about 14914.0950446214. The cubic root of 222430231 is about 605.8957938579.

Adding to 222430231 its reverse (132034222), we get a palindrome (354464453).

The spelling of 222430231 in words is "two hundred twenty-two million, four hundred thirty thousand, two hundred thirty-one".