222385871 has 2 divisors, whose sum is σ = 222385872. Its totient is φ = 222385870.

The previous prime is 222385859. The next prime is 222385879. The reversal of 222385871 is 178583222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222385871 - 2²⁶ = 155277007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222385879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111192935 + 111192936.

It is an arithmetic number, because the mean of its divisors is an integer number (111192936).

Almost surely, 2^222385871 is an apocalyptic number.

222385871 is a deficient number, since it is larger than the sum of its proper divisors (1).

222385871 is an equidigital number, since it uses as much as digits as its factorization.

222385871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 222385871 is about 14912.6077867018. The cubic root of 222385871 is about 605.8555125762.

The spelling of 222385871 in words is "two hundred twenty-two million, three hundred eighty-five thousand, eight hundred seventy-one".