223221122321 has 16 divisors (see below), whose sum is σ = 228070902528. Its totient is φ = 218410819200.

The previous prime is 223221122287. The next prime is 223221122329. The reversal of 223221122321 is 123221122322.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 223221122321 - 2³⁴ = 206041253137 is a prime.

It is a super-3 number, since 3×223221122321³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223221122329) 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, 38906165 + ... + 38911901.

It is an arithmetic number, because the mean of its divisors is an integer number (14254431408).

Almost surely, 2^223221122321 is an apocalyptic number.

It is an amenable number.

223221122321 is a deficient number, since it is larger than the sum of its proper divisors (4849780207).

223221122321 is a wasteful number, since it uses less digits than its factorization.

223221122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032.

The product of its digits is 1152, while the sum is 23.

Adding to 223221122321 its reverse (123221122322), we get a palindrome (346442244643).

Subtracting from 223221122321 its reverse (123221122322), we obtain a palindrome (99999999999).

The spelling of 223221122321 in words is "two hundred twenty-three billion, two hundred twenty-one million, one hundred twenty-two thousand, three hundred twenty-one".