232231321221 has 8 divisors (see below), whose sum is σ = 311901921024. Its totient is φ = 153690801120.

The previous prime is 232231321213. The next prime is 232231321237. The reversal of 232231321221 is 122123132232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 232231321221 - 2³ = 232231321213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232231321191 and 232231321200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232231321271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282519445 + ... + 282520266.

It is an arithmetic number, because the mean of its divisors is an integer number (38987740128).

Almost surely, 2^232231321221 is an apocalyptic number.

It is an amenable number.

232231321221 is a deficient number, since it is larger than the sum of its proper divisors (79670599803).

232231321221 is a wasteful number, since it uses less digits than its factorization.

232231321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565039851.

The product of its digits is 1728, while the sum is 24.

Adding to 232231321221 its reverse (122123132232), we get a palindrome (354354453453).

The spelling of 232231321221 in words is "two hundred thirty-two billion, two hundred thirty-one million, three hundred twenty-one thousand, two hundred twenty-one".