222973871 has 4 divisors (see below), whose sum is σ = 223203072. Its totient is φ = 222744672.

The previous prime is 222973843. The next prime is 222973889. The reversal of 222973871 is 178379222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222973871 - 2²⁶ = 155865007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222973801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113135 + ... + 115088.

It is an arithmetic number, because the mean of its divisors is an integer number (55800768).

Almost surely, 2^222973871 is an apocalyptic number.

222973871 is a deficient number, since it is larger than the sum of its proper divisors (229201).

222973871 is an equidigital number, since it uses as much as digits as its factorization.

222973871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229200.

The product of its digits is 84672, while the sum is 41.

The square root of 222973871 is about 14932.3096338108. The cubic root of 222973871 is about 606.3890139853.

The spelling of 222973871 in words is "two hundred twenty-two million, nine hundred seventy-three thousand, eight hundred seventy-one".