222033257 has 2 divisors, whose sum is σ = 222033258. Its totient is φ = 222033256.

The previous prime is 222033247. The next prime is 222033323. The reversal of 222033257 is 752330222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221295376 + 737881 = 14876^2 + 859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222033257 is a prime.

It is not a weakly prime, because it can be changed into another prime (222033247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111016628 + 111016629.

It is an arithmetic number, because the mean of its divisors is an integer number (111016629).

Almost surely, 2^222033257 is an apocalyptic number.

It is an amenable number.

222033257 is a deficient number, since it is larger than the sum of its proper divisors (1).

222033257 is an equidigital number, since it uses as much as digits as its factorization.

222033257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 222033257 is about 14900.7804158037. The cubic root of 222033257 is about 605.5351292920.

Adding to 222033257 its reverse (752330222), we get a palindrome (974363479).

The spelling of 222033257 in words is "two hundred twenty-two million, thirty-three thousand, two hundred fifty-seven".