232222217 has 2 divisors, whose sum is σ = 232222218. Its totient is φ = 232222216.

The previous prime is 232222213. The next prime is 232222219. The reversal of 232222217 is 712222232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228493456 + 3728761 = 15116^2 + 1931^2 .

It is a cyclic number.

It is not a de Polignac number, because 232222217 - 2² = 232222213 is a prime.

Together with 232222219, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 232222192 and 232222201.

It is not a weakly prime, because it can be changed into another prime (232222213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116111108 + 116111109.

It is an arithmetic number, because the mean of its divisors is an integer number (116111109).

Almost surely, 2^232222217 is an apocalyptic number.

It is an amenable number.

232222217 is a deficient number, since it is larger than the sum of its proper divisors (1).

232222217 is an equidigital number, since it uses as much as digits as its factorization.

232222217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 23.

The square root of 232222217 is about 15238.8390962041. The cubic root of 232222217 is about 614.6594867368.

Adding to 232222217 its reverse (712222232), we get a palindrome (944444449).

The spelling of 232222217 in words is "two hundred thirty-two million, two hundred twenty-two thousand, two hundred seventeen".