222897061 has 2 divisors, whose sum is σ = 222897062. Its totient is φ = 222897060.

The previous prime is 222897023. The next prime is 222897067. The reversal of 222897061 is 160798222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216266436 + 6630625 = 14706^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 222897061 - 2⁹ = 222896549 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222897061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222897067) 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, 111448530 + 111448531.

It is an arithmetic number, because the mean of its divisors is an integer number (111448531).

Almost surely, 2^222897061 is an apocalyptic number.

It is an amenable number.

222897061 is a deficient number, since it is larger than the sum of its proper divisors (1).

222897061 is an equidigital number, since it uses as much as digits as its factorization.

222897061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 222897061 is about 14929.7374725747. The cubic root of 222897061 is about 606.3193763947.

The spelling of 222897061 in words is "two hundred twenty-two million, eight hundred ninety-seven thousand, sixty-one".