222016117 has 2 divisors, whose sum is σ = 222016118. Its totient is φ = 222016116.

The previous prime is 222016103. The next prime is 222016127. The reversal of 222016117 is 711610222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173211921 + 48804196 = 13161^2 + 6986^2 .

It is a cyclic number.

It is not a de Polignac number, because 222016117 - 2²³ = 213627509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222016127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111008058 + 111008059.

It is an arithmetic number, because the mean of its divisors is an integer number (111008059).

Almost surely, 2^222016117 is an apocalyptic number.

It is an amenable number.

222016117 is a deficient number, since it is larger than the sum of its proper divisors (1).

222016117 is an equidigital number, since it uses as much as digits as its factorization.

222016117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 222016117 is about 14900.2052670425. The cubic root of 222016117 is about 605.5195473331.

Adding to 222016117 its reverse (711610222), we get a palindrome (933626339).

The spelling of 222016117 in words is "two hundred twenty-two million, sixteen thousand, one hundred seventeen".