223112123212321 has 8 divisors (see below), whose sum is σ = 254985550146944. Its totient is φ = 191238762896640.

The previous prime is 223112123212261. The next prime is 223112123212399. The reversal of 223112123212321 is 123212321211322.

223112123212321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 223112123212321 - 2²⁵ = 223112089657889 is a prime.

It is a super-3 number, since 3×223112123212321³ (a number of 44 digits) contains 333 as substring.

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 223112123212321.

It is not an unprimeable number, because it can be changed into a prime (223112123218321) 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, 9259200 + ... + 23064193.

It is an arithmetic number, because the mean of its divisors is an integer number (31873193768368).

Almost surely, 2^{223112123212321} is an apocalyptic number.

It is an amenable number.

223112123212321 is a deficient number, since it is larger than the sum of its proper divisors (31873426934623).

223112123212321 is an equidigital number, since it uses as much as digits as its factorization.

223112123212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33309471.

The product of its digits is 3456, while the sum is 28.

Adding to 223112123212321 its reverse (123212321211322), we get a palindrome (346324444423643).

The spelling of 223112123212321 in words is "two hundred twenty-three trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twelve thousand, three hundred twenty-one".