323201221 has 16 divisors (see below), whose sum is σ = 388272384. Its totient is φ = 263032704.

The previous prime is 323201213. The next prime is 323201227. The reversal of 323201221 is 122102323.

It is a cyclic number.

It is not a de Polignac number, because 323201221 - 2³ = 323201213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323201195 and 323201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323201227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14731 + ... + 29383.

It is an arithmetic number, because the mean of its divisors is an integer number (24267024).

Almost surely, 2^323201221 is an apocalyptic number.

It is an amenable number.

323201221 is a deficient number, since it is larger than the sum of its proper divisors (65071163).

323201221 is a wasteful number, since it uses less digits than its factorization.

323201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14820.

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

The square root of 323201221 is about 17977.7980019801. The cubic root of 323201221 is about 686.2636528461.

Adding to 323201221 its reverse (122102323), we get a palindrome (445303544).

The spelling of 323201221 in words is "three hundred twenty-three million, two hundred one thousand, two hundred twenty-one".