222164443 has 4 divisors (see below), whose sum is σ = 222213280. Its totient is φ = 222115608.

The previous prime is 222164431. The next prime is 222164461. The reversal of 222164443 is 344461222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222164443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222167443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16803 + ... + 26956.

It is an arithmetic number, because the mean of its divisors is an integer number (55553320).

Almost surely, 2^222164443 is an apocalyptic number.

222164443 is a deficient number, since it is larger than the sum of its proper divisors (48837).

222164443 is an equidigital number, since it uses as much as digits as its factorization.

222164443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48836.

The product of its digits is 9216, while the sum is 28.

The square root of 222164443 is about 14905.1817499821. The cubic root of 222164443 is about 605.6543638197.

The spelling of 222164443 in words is "two hundred twenty-two million, one hundred sixty-four thousand, four hundred forty-three".