222256847 has 2 divisors, whose sum is σ = 222256848. Its totient is φ = 222256846.

The previous prime is 222256831. The next prime is 222256849. The reversal of 222256847 is 748652222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222256847 - 2⁴ = 222256831 is a prime.

Together with 222256849, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222256847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222256849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111128423 + 111128424.

It is an arithmetic number, because the mean of its divisors is an integer number (111128424).

Almost surely, 2^222256847 is an apocalyptic number.

222256847 is a deficient number, since it is larger than the sum of its proper divisors (1).

222256847 is an equidigital number, since it uses as much as digits as its factorization.

222256847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The square root of 222256847 is about 14908.2811551164. The cubic root of 222256847 is about 605.7383213420.

The spelling of 222256847 in words is "two hundred twenty-two million, two hundred fifty-six thousand, eight hundred forty-seven".