222368118961 has 2 divisors, whose sum is σ = 222368118962. Its totient is φ = 222368118960.

The previous prime is 222368118887. The next prime is 222368118989. The reversal of 222368118961 is 169811863222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204181978225 + 18186140736 = 451865^2 + 134856^2 .

It is a cyclic number.

It is not a de Polignac number, because 222368118961 - 2¹¹ = 222368116913 is a prime.

It is not a weakly prime, because it can be changed into another prime (222368118991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111184059480 + 111184059481.

It is an arithmetic number, because the mean of its divisors is an integer number (111184059481).

Almost surely, 2^222368118961 is an apocalyptic number.

It is an amenable number.

222368118961 is a deficient number, since it is larger than the sum of its proper divisors (1).

222368118961 is an equidigital number, since it uses as much as digits as its factorization.

222368118961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 49.

The spelling of 222368118961 in words is "two hundred twenty-two billion, three hundred sixty-eight million, one hundred eighteen thousand, nine hundred sixty-one".