222424247 has 2 divisors, whose sum is σ = 222424248. Its totient is φ = 222424246.

The previous prime is 222424193. The next prime is 222424249. The reversal of 222424247 is 742424222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222424247 - 2⁶ = 222424183 is a prime.

Together with 222424249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222424249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111212123 + 111212124.

It is an arithmetic number, because the mean of its divisors is an integer number (111212124).

Almost surely, 2^222424247 is an apocalyptic number.

222424247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222424247 is an equidigital number, since it uses as much as digits as its factorization.

222424247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 29.

The square root of 222424247 is about 14913.8944276805. The cubic root of 222424247 is about 605.8903603745.

Adding to 222424247 its reverse (742424222), we get a palindrome (964848469).

The spelling of 222424247 in words is "two hundred twenty-two million, four hundred twenty-four thousand, two hundred forty-seven".