32222171221 has 4 divisors (see below), whose sum is σ = 32266987200. Its totient is φ = 32177355244.

The previous prime is 32222171213. The next prime is 32222171227. The reversal of 32222171221 is 12217122223.

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 a cyclic number.

It is not a de Polignac number, because 32222171221 - 2³ = 32222171213 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 (32222171227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22406911 + ... + 22408348.

It is an arithmetic number, because the mean of its divisors is an integer number (8066746800).

Almost surely, 2^32222171221 is an apocalyptic number.

It is an amenable number.

32222171221 is a deficient number, since it is larger than the sum of its proper divisors (44815979).

32222171221 is an equidigital number, since it uses as much as digits as its factorization.

32222171221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44815978.

The product of its digits is 1344, while the sum is 25.

Adding to 32222171221 its reverse (12217122223), we get a palindrome (44439293444).

The spelling of 32222171221 in words is "thirty-two billion, two hundred twenty-two million, one hundred seventy-one thousand, two hundred twenty-one".