232201321221 has 16 divisors (see below), whose sum is σ = 318311136000. Its totient is φ = 150490404288.

The previous prime is 232201321217. The next prime is 232201321223. The reversal of 232201321221 is 122123102232.

It is not a de Polignac number, because 232201321221 - 2² = 232201321217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232201321223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5505226 + ... + 5547243.

It is an arithmetic number, because the mean of its divisors is an integer number (19894446000).

Almost surely, 2^232201321221 is an apocalyptic number.

It is an amenable number.

232201321221 is a deficient number, since it is larger than the sum of its proper divisors (86109814779).

232201321221 is a wasteful number, since it uses less digits than its factorization.

232201321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052668.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 232201321221 its reverse (122123102232), we get a palindrome (354324423453).

The spelling of 232201321221 in words is "two hundred thirty-two billion, two hundred one million, three hundred twenty-one thousand, two hundred twenty-one".