222404871 has 16 divisors (see below), whose sum is σ = 333236736. Its totient is φ = 130913376.

The previous prime is 222404867. The next prime is 222404879. The reversal of 222404871 is 178404222.

It is not a de Polignac number, because 222404871 - 2² = 222404867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222404879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123075 + ... + 124868.

It is an arithmetic number, because the mean of its divisors is an integer number (20827296).

Almost surely, 2^222404871 is an apocalyptic number.

222404871 is a deficient number, since it is larger than the sum of its proper divisors (110831865).

222404871 is a wasteful number, since it uses less digits than its factorization.

222404871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247982.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 222404871 is about 14913.2448179462. The cubic root of 222404871 is about 605.8727662607.

The spelling of 222404871 in words is "two hundred twenty-two million, four hundred four thousand, eight hundred seventy-one".