232321221 has 24 divisors (see below), whose sum is σ = 368438304. Its totient is φ = 139894560.

The previous prime is 232321213. The next prime is 232321231. The reversal of 232321221 is 122123232.

It is not a de Polignac number, because 232321221 - 2³ = 232321213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232321194 and 232321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232321231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8070 + ... + 23016.

It is an arithmetic number, because the mean of its divisors is an integer number (15351596).

Almost surely, 2^232321221 is an apocalyptic number.

It is an amenable number.

232321221 is a deficient number, since it is larger than the sum of its proper divisors (136117083).

232321221 is a wasteful number, since it uses less digits than its factorization.

232321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15121 (or 15118 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 232321221 is about 15242.0871602284. The cubic root of 232321221 is about 614.7468242056.

Adding to 232321221 its reverse (122123232), we get a palindrome (354444453).

The spelling of 232321221 in words is "two hundred thirty-two million, three hundred twenty-one thousand, two hundred twenty-one".