222552361 has 2 divisors, whose sum is σ = 222552362. Its totient is φ = 222552360.

The previous prime is 222552349. The next prime is 222552397. The reversal of 222552361 is 163255222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117592336 + 104960025 = 10844^2 + 10245^2 .

It is a cyclic number.

It is not a de Polignac number, because 222552361 - 2¹¹ = 222550313 is a prime.

It is not a weakly prime, because it can be changed into another prime (222558361) 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, 111276180 + 111276181.

It is an arithmetic number, because the mean of its divisors is an integer number (111276181).

Almost surely, 2^222552361 is an apocalyptic number.

It is an amenable number.

222552361 is a deficient number, since it is larger than the sum of its proper divisors (1).

222552361 is an equidigital number, since it uses as much as digits as its factorization.

222552361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 222552361 is about 14918.1889316364. The cubic root of 222552361 is about 606.0066668475.

The spelling of 222552361 in words is "two hundred twenty-two million, five hundred fifty-two thousand, three hundred sixty-one".