222798241 has 2 divisors, whose sum is σ = 222798242. Its totient is φ = 222798240.

The previous prime is 222798227. The next prime is 222798353. The reversal of 222798241 is 142897222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154256400 + 68541841 = 12420^2 + 8279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222798241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222798241.

It is not a weakly prime, because it can be changed into another prime (222798221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111399120 + 111399121.

It is an arithmetic number, because the mean of its divisors is an integer number (111399121).

Almost surely, 2^222798241 is an apocalyptic number.

It is an amenable number.

222798241 is a deficient number, since it is larger than the sum of its proper divisors (1).

222798241 is an equidigital number, since it uses as much as digits as its factorization.

222798241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 222798241 is about 14926.4276034154. The cubic root of 222798241 is about 606.2297605317.

The spelling of 222798241 in words is "two hundred twenty-two million, seven hundred ninety-eight thousand, two hundred forty-one".