222320617 has 2 divisors, whose sum is σ = 222320618. Its totient is φ = 222320616.

The previous prime is 222320603. The next prime is 222320627. The reversal of 222320617 is 716023222.

222320617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113827561 + 108493056 = 10669^2 + 10416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222320617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222320591 and 222320600.

It is not a weakly prime, because it can be changed into another prime (222320627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160308 + 111160309.

It is an arithmetic number, because the mean of its divisors is an integer number (111160309).

Almost surely, 2^222320617 is an apocalyptic number.

It is an amenable number.

222320617 is a deficient number, since it is larger than the sum of its proper divisors (1).

222320617 is an equidigital number, since it uses as much as digits as its factorization.

222320617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 222320617 is about 14910.4197459361. The cubic root of 222320617 is about 605.7962486747.

Adding to 222320617 its reverse (716023222), we get a palindrome (938343839).

The spelling of 222320617 in words is "two hundred twenty-two million, three hundred twenty thousand, six hundred seventeen".