222111212223 has 8 divisors (see below), whose sum is σ = 296495470768. Its totient is φ = 147900547584.

The previous prime is 222111212207. The next prime is 222111212261. The reversal of 222111212223 is 322212111222.

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

It is not a de Polignac number, because 222111212223 - 2⁴ = 222111212207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222111212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111212923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43395490 + ... + 43400607.

It is an arithmetic number, because the mean of its divisors is an integer number (37061933846).

Almost surely, 2^222111212223 is an apocalyptic number.

222111212223 is a deficient number, since it is larger than the sum of its proper divisors (74384258545).

222111212223 is an equidigital number, since it uses as much as digits as its factorization.

222111212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86796953.

The product of its digits is 384, while the sum is 21.

Adding to 222111212223 its reverse (322212111222), we get a palindrome (544323323445).

The spelling of 222111212223 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-three".