222113330161 has 2 divisors, whose sum is σ = 222113330162. Its totient is φ = 222113330160.

The previous prime is 222113330141. The next prime is 222113330167. The reversal of 222113330161 is 161033311222.

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., 132437038561 + 89676291600 = 363919^2 + 299460^2 .

It is a cyclic number.

It is not a de Polignac number, because 222113330161 - 2⁵ = 222113330129 is a prime.

It is not a weakly prime, because it can be changed into another prime (222113330167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056665080 + 111056665081.

It is an arithmetic number, because the mean of its divisors is an integer number (111056665081).

Almost surely, 2^222113330161 is an apocalyptic number.

It is an amenable number.

222113330161 is a deficient number, since it is larger than the sum of its proper divisors (1).

222113330161 is an equidigital number, since it uses as much as digits as its factorization.

222113330161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 222113330161 its reverse (161033311222), we get a palindrome (383146641383).

The spelling of 222113330161 in words is "two hundred twenty-two billion, one hundred thirteen million, three hundred thirty thousand, one hundred sixty-one".