223122323221321 has 16 divisors (see below), whose sum is σ = 225705347209728. Its totient is φ = 220550179449600.

The previous prime is 223122323221309. The next prime is 223122323221373. The reversal of 223122323221321 is 123122323221322.

It is a cyclic number.

It is not a de Polignac number, because 223122323221321 - 2²⁵ = 223122289666889 is a prime.

It is a super-3 number, since 3×223122323221321³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223122323281321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244979986 + ... + 245889076.

It is an arithmetic number, because the mean of its divisors is an integer number (14106584200608).

Almost surely, 2^{223122323221321} is an apocalyptic number.

It is an amenable number.

223122323221321 is a deficient number, since it is larger than the sum of its proper divisors (2583023988407).

223122323221321 is a wasteful number, since it uses less digits than its factorization.

223122323221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915072.

The product of its digits is 20736, while the sum is 31.

Adding to 223122323221321 its reverse (123122323221322), we get a palindrome (346244646442643).

Subtracting from 223122323221321 its reverse (123122323221322), we obtain a palindrome (99999999999999).

The spelling of 223122323221321 in words is "two hundred twenty-three trillion, one hundred twenty-two billion, three hundred twenty-three million, two hundred twenty-one thousand, three hundred twenty-one".