32231023221 has 4 divisors (see below), whose sum is σ = 42974697632. Its totient is φ = 21487348812.

The previous prime is 32231023193. The next prime is 32231023229. The reversal of 32231023221 is 12232013223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 32231023221 - 2¹⁸ = 32230761077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32231023229) 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 3 ways as a sum of consecutive naturals, for example, 5371837201 + ... + 5371837206.

It is an arithmetic number, because the mean of its divisors is an integer number (10743674408).

Almost surely, 2^32231023221 is an apocalyptic number.

It is an amenable number.

32231023221 is a deficient number, since it is larger than the sum of its proper divisors (10743674411).

32231023221 is a wasteful number, since it uses less digits than its factorization.

32231023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10743674410.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 32231023221 its reverse (12232013223), we get a palindrome (44463036444).

The spelling of 32231023221 in words is "thirty-two billion, two hundred thirty-one million, twenty-three thousand, two hundred twenty-one".