222320330221 has 12 divisors (see below), whose sum is σ = 246152358396. Its totient is φ = 200634125120.

The previous prime is 222320330189. The next prime is 222320330233. The reversal of 222320330221 is 122033023222.

It can be written as a sum of positive squares in 2 ways, for example, as 168806761321 + 53513568900 = 410861^2 + 231330^2 .

It is not a de Polignac number, because 222320330221 - 2⁵ = 222320330189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222320330192 and 222320330201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222320330021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6689110 + ... + 6722263.

It is an arithmetic number, because the mean of its divisors is an integer number (20512696533).

Almost surely, 2^222320330221 is an apocalyptic number.

It is an amenable number.

222320330221 is a deficient number, since it is larger than the sum of its proper divisors (23832028175).

222320330221 is a wasteful number, since it uses less digits than its factorization.

222320330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13411532 (or 13411521 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 222320330221 its reverse (122033023222), we get a palindrome (344353353443).

The spelling of 222320330221 in words is "two hundred twenty-two billion, three hundred twenty million, three hundred thirty thousand, two hundred twenty-one".