222816241 has 2 divisors, whose sum is σ = 222816242. Its totient is φ = 222816240.

The previous prime is 222816179. The next prime is 222816281. The reversal of 222816241 is 142618222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165662641 + 57153600 = 12871^2 + 7560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222816241 is a prime.

It is not a weakly prime, because it can be changed into another prime (222816281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111408120 + 111408121.

It is an arithmetic number, because the mean of its divisors is an integer number (111408121).

Almost surely, 2^222816241 is an apocalyptic number.

It is an amenable number.

222816241 is a deficient number, since it is larger than the sum of its proper divisors (1).

222816241 is an equidigital number, since it uses as much as digits as its factorization.

222816241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 28.

The square root of 222816241 is about 14927.0305486389. The cubic root of 222816241 is about 606.2460859775.

The spelling of 222816241 in words is "two hundred twenty-two million, eight hundred sixteen thousand, two hundred forty-one".