222181223 has 8 divisors (see below), whose sum is σ = 245794176. Its totient is φ = 199137400.

The previous prime is 222181217. The next prime is 222181229. The reversal of 222181223 is 322181222.

It is an interprime number because it is at equal distance from previous prime (222181217) and next prime (222181229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222181223 - 2⁴ = 222181207 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 (222181229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141461 + ... + 143022.

It is an arithmetic number, because the mean of its divisors is an integer number (30724272).

Almost surely, 2^222181223 is an apocalyptic number.

222181223 is a deficient number, since it is larger than the sum of its proper divisors (23612953).

222181223 is a wasteful number, since it uses less digits than its factorization.

222181223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284565.

The product of its digits is 768, while the sum is 23.

The square root of 222181223 is about 14905.7446308462. The cubic root of 222181223 is about 605.6696117208.

Subtracting 222181223 from its reverse (322181222), we obtain a palindrome (99999999).

The spelling of 222181223 in words is "two hundred twenty-two million, one hundred eighty-one thousand, two hundred twenty-three".