32232332221 has 4 divisors (see below), whose sum is σ = 32232692700. Its totient is φ = 32231971744.

The previous prime is 32232332213. The next prime is 32232332267. The reversal of 32232332221 is 12223323223.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12223323223 = 103 ⋅118673041.

It can be written as a sum of positive squares in 2 ways, for example, as 5983796025 + 26248536196 = 77355^2 + 162014^2 .

It is a cyclic number.

It is not a de Polignac number, because 32232332221 - 2³ = 32232332213 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 (32232332201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66225 + ... + 262393.

It is an arithmetic number, because the mean of its divisors is an integer number (8058173175).

Almost surely, 2^32232332221 is an apocalyptic number.

It is an amenable number.

32232332221 is a deficient number, since it is larger than the sum of its proper divisors (360479).

32232332221 is a wasteful number, since it uses less digits than its factorization.

32232332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360478.

The product of its digits is 5184, while the sum is 25.

Adding to 32232332221 its reverse (12223323223), we get a palindrome (44455655444).

The spelling of 32232332221 in words is "thirty-two billion, two hundred thirty-two million, three hundred thirty-two thousand, two hundred twenty-one".