222244397 has 2 divisors, whose sum is σ = 222244398. Its totient is φ = 222244396.

The previous prime is 222244381. The next prime is 222244403. The reversal of 222244397 is 793442222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221980201 + 264196 = 14899^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 222244397 - 2⁴ = 222244381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222244307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111122198 + 111122199.

It is an arithmetic number, because the mean of its divisors is an integer number (111122199).

Almost surely, 2^222244397 is an apocalyptic number.

It is an amenable number.

222244397 is a deficient number, since it is larger than the sum of its proper divisors (1).

222244397 is an equidigital number, since it uses as much as digits as its factorization.

222244397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 35.

The square root of 222244397 is about 14907.8635961026. The cubic root of 222244397 is about 605.7270107300.

The spelling of 222244397 in words is "two hundred twenty-two million, two hundred forty-four thousand, three hundred ninety-seven".