222426247 has 2 divisors, whose sum is σ = 222426248. Its totient is φ = 222426246.

The previous prime is 222426223. The next prime is 222426257. The reversal of 222426247 is 742624222.

222426247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222426247 - 2⁷ = 222426119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222426257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111213123 + 111213124.

It is an arithmetic number, because the mean of its divisors is an integer number (111213124).

Almost surely, 2^222426247 is an apocalyptic number.

222426247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222426247 is an equidigital number, since it uses as much as digits as its factorization.

222426247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 31.

The square root of 222426247 is about 14913.9614790974. The cubic root of 222426247 is about 605.8921763891.

The spelling of 222426247 in words is "two hundred twenty-two million, four hundred twenty-six thousand, two hundred forty-seven".