222457117 has 2 divisors, whose sum is σ = 222457118. Its totient is φ = 222457116.

The previous prime is 222457099. The next prime is 222457133. The reversal of 222457117 is 711754222.

222457117 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., 222039801 + 417316 = 14901^2 + 646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222457117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222457717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111228558 + 111228559.

It is an arithmetic number, because the mean of its divisors is an integer number (111228559).

Almost surely, 2^222457117 is an apocalyptic number.

It is an amenable number.

222457117 is a deficient number, since it is larger than the sum of its proper divisors (1).

222457117 is an equidigital number, since it uses as much as digits as its factorization.

222457117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 31.

The square root of 222457117 is about 14914.9963794833. The cubic root of 222457117 is about 605.9202051950.

The spelling of 222457117 in words is "two hundred twenty-two million, four hundred fifty-seven thousand, one hundred seventeen".