222050161 has 2 divisors, whose sum is σ = 222050162. Its totient is φ = 222050160.

The previous prime is 222050051. The next prime is 222050177. The reversal of 222050161 is 161050222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194435136 + 27615025 = 13944^2 + 5255^2 .

It is a cyclic number.

It is not a de Polignac number, because 222050161 - 2⁹ = 222049649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222090161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111025080 + 111025081.

It is an arithmetic number, because the mean of its divisors is an integer number (111025081).

Almost surely, 2^222050161 is an apocalyptic number.

It is an amenable number.

222050161 is a deficient number, since it is larger than the sum of its proper divisors (1).

222050161 is an equidigital number, since it uses as much as digits as its factorization.

222050161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 222050161 is about 14901.3476236212. The cubic root of 222050161 is about 605.5504959180.

The spelling of 222050161 in words is "two hundred twenty-two million, fifty thousand, one hundred sixty-one".