223320211321 has 8 divisors (see below), whose sum is σ = 227318743784. Its totient is φ = 219347066880.

The previous prime is 223320211291. The next prime is 223320211339. The reversal of 223320211321 is 123112023322.

It can be written as a sum of positive squares in 4 ways, for example, as 15074928400 + 208245282921 = 122780^2 + 456339^2 .

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 223320211321 - 2¹⁵ = 223320178553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223320211292 and 223320211301.

It is not an unprimeable number, because it can be changed into a prime (223320214321) 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, 6329256 + ... + 6364441.

It is an arithmetic number, because the mean of its divisors is an integer number (28414842973).

Almost surely, 2^223320211321 is an apocalyptic number.

It is an amenable number.

223320211321 is a deficient number, since it is larger than the sum of its proper divisors (3998532463).

223320211321 is a wasteful number, since it uses less digits than its factorization.

223320211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12694011.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 223320211321 its reverse (123112023322), we get a palindrome (346432234643).

The spelling of 223320211321 in words is "two hundred twenty-three billion, three hundred twenty million, two hundred eleven thousand, three hundred twenty-one".