322130221 has 16 divisors (see below), whose sum is σ = 373621248. Its totient is φ = 272026800.

The previous prime is 322130209. The next prime is 322130227. The reversal of 322130221 is 122031223.

It is a cyclic number.

It is not a de Polignac number, because 322130221 - 2²¹ = 320033069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 322130195 and 322130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322130227) 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, 331266 + ... + 332236.

It is an arithmetic number, because the mean of its divisors is an integer number (23351328).

Almost surely, 2^322130221 is an apocalyptic number.

It is an amenable number.

322130221 is a deficient number, since it is larger than the sum of its proper divisors (51491027).

322130221 is an equidigital number, since it uses as much as digits as its factorization.

322130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 322130221 is about 17947.9865444567. The cubic root of 322130221 is about 685.5047843022.

Adding to 322130221 its reverse (122031223), we get a palindrome (444161444).

The spelling of 322130221 in words is "three hundred twenty-two million, one hundred thirty thousand, two hundred twenty-one".