221112111223 has 8 divisors (see below), whose sum is σ = 221708851568. Its totient is φ = 220515571584.

The previous prime is 221112111221. The next prime is 221112111229. The reversal of 221112111223 is 322111211122.

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

It is a cyclic number.

It is not a de Polignac number, because 221112111223 - 2¹ = 221112111221 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 221112111223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112111221) 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, 2304415 + ... + 2398447.

It is an arithmetic number, because the mean of its divisors is an integer number (27713606446).

Almost surely, 2^221112111223 is an apocalyptic number.

221112111223 is a deficient number, since it is larger than the sum of its proper divisors (596740345).

221112111223 is an equidigital number, since it uses as much as digits as its factorization.

221112111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100353.

The product of its digits is 96, while the sum is 19.

Adding to 221112111223 its reverse (322111211122), we get a palindrome (543223322345).

It can be divided in two parts, 22111211122 and 3, that multiplied together give a palindrome (66333633366).

The spelling of 221112111223 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, two hundred twenty-three".