222240247 has 2 divisors, whose sum is σ = 222240248. Its totient is φ = 222240246.

The previous prime is 222240223. The next prime is 222240257. The reversal of 222240247 is 742042222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222240247 - 2⁷ = 222240119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222240217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111120123 + 111120124.

It is an arithmetic number, because the mean of its divisors is an integer number (111120124).

Almost surely, 2^222240247 is an apocalyptic number.

222240247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222240247 is an equidigital number, since it uses as much as digits as its factorization.

222240247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 222240247 is about 14907.7244071656. The cubic root of 222240247 is about 605.7232404321.

Adding to 222240247 its reverse (742042222), we get a palindrome (964282469).

The spelling of 222240247 in words is "two hundred twenty-two million, two hundred forty thousand, two hundred forty-seven".