223221112123 has 2 divisors, whose sum is σ = 223221112124. Its totient is φ = 223221112122.

The previous prime is 223221112109. The next prime is 223221112201. The reversal of 223221112123 is 321211122322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223221112123 - 2⁵ = 223221112091 is a prime.

It is a super-3 number, since 3×223221112123³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223221112094 and 223221112103.

It is not a weakly prime, because it can be changed into another prime (223221112523) 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 as a sum of consecutive naturals, namely, 111610556061 + 111610556062.

It is an arithmetic number, because the mean of its divisors is an integer number (111610556062).

Almost surely, 2^223221112123 is an apocalyptic number.

223221112123 is a deficient number, since it is larger than the sum of its proper divisors (1).

223221112123 is an equidigital number, since it uses as much as digits as its factorization.

223221112123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

Adding to 223221112123 its reverse (321211122322), we get a palindrome (544432234445).

The spelling of 223221112123 in words is "two hundred twenty-three billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-three".