222252257 has 2 divisors, whose sum is σ = 222252258. Its totient is φ = 222252256.

The previous prime is 222252241. The next prime is 222252263. The reversal of 222252257 is 752252222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219069601 + 3182656 = 14801^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 222252257 - 2⁴ = 222252241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222252227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111126128 + 111126129.

It is an arithmetic number, because the mean of its divisors is an integer number (111126129).

Almost surely, 2^222252257 is an apocalyptic number.

It is an amenable number.

222252257 is a deficient number, since it is larger than the sum of its proper divisors (1).

222252257 is an equidigital number, since it uses as much as digits as its factorization.

222252257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 29.

The square root of 222252257 is about 14908.1272130338. The cubic root of 222252257 is about 605.7341514547.

The spelling of 222252257 in words is "two hundred twenty-two million, two hundred fifty-two thousand, two hundred fifty-seven".