222325217 has 2 divisors, whose sum is σ = 222325218. Its totient is φ = 222325216.

The previous prime is 222325189. The next prime is 222325219. The reversal of 222325217 is 712523222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194909521 + 27415696 = 13961^2 + 5236^2 .

It is a cyclic number.

It is not a de Polignac number, because 222325217 - 2¹⁴ = 222308833 is a prime.

It is a super-2 number, since 2×222325217² = 98857004228194178, which contains 22 as substring.

Together with 222325219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222325219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111162608 + 111162609.

It is an arithmetic number, because the mean of its divisors is an integer number (111162609).

Almost surely, 2^222325217 is an apocalyptic number.

It is an amenable number.

222325217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222325217 is an equidigital number, since it uses as much as digits as its factorization.

222325217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 222325217 is about 14910.5739996822. The cubic root of 222325217 is about 605.8004267900.

Adding to 222325217 its reverse (712523222), we get a palindrome (934848439).

The spelling of 222325217 in words is "two hundred twenty-two million, three hundred twenty-five thousand, two hundred seventeen".