222918347 has 2 divisors, whose sum is σ = 222918348. Its totient is φ = 222918346.

The previous prime is 222918341. The next prime is 222918361. The reversal of 222918347 is 743819222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222918347 - 2¹⁰ = 222917323 is a prime.

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 222918347.

It is not a weakly prime, because it can be changed into another prime (222918341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111459173 + 111459174.

It is an arithmetic number, because the mean of its divisors is an integer number (111459174).

Almost surely, 2^222918347 is an apocalyptic number.

222918347 is a deficient number, since it is larger than the sum of its proper divisors (1).

222918347 is an equidigital number, since it uses as much as digits as its factorization.

222918347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 222918347 is about 14930.4503281046. The cubic root of 222918347 is about 606.3386763403.

The spelling of 222918347 in words is "two hundred twenty-two million, nine hundred eighteen thousand, three hundred forty-seven".