222241344161 has 2 divisors, whose sum is σ = 222241344162. Its totient is φ = 222241344160.

The previous prime is 222241344119. The next prime is 222241344163. The reversal of 222241344161 is 161443142222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207429237136 + 14812107025 = 455444^2 + 121705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222241344161 is a prime.

Together with 222241344163, 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 (222241344163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111120672080 + 111120672081.

It is an arithmetic number, because the mean of its divisors is an integer number (111120672081).

Almost surely, 2^222241344161 is an apocalyptic number.

It is an amenable number.

222241344161 is a deficient number, since it is larger than the sum of its proper divisors (1).

222241344161 is an equidigital number, since it uses as much as digits as its factorization.

222241344161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 32.

Adding to 222241344161 its reverse (161443142222), we get a palindrome (383684486383).

The spelling of 222241344161 in words is "two hundred twenty-two billion, two hundred forty-one million, three hundred forty-four thousand, one hundred sixty-one".