12332210221 has 4 divisors (see below), whose sum is σ = 12422226492. Its totient is φ = 12242193952.

The previous prime is 12332210131. The next prime is 12332210237. The reversal of 12332210221 is 12201223321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12201223321 = 7 ⋅1743031903.

It can be written as a sum of positive squares in 2 ways, for example, as 6152049225 + 6180160996 = 78435^2 + 78614^2 .

It is a cyclic number.

It is not a de Polignac number, because 12332210221 - 2¹⁵ = 12332177453 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 (12332210321) 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, 45007930 + ... + 45008203.

It is an arithmetic number, because the mean of its divisors is an integer number (3105556623).

Almost surely, 2^12332210221 is an apocalyptic number.

It is an amenable number.

12332210221 is a deficient number, since it is larger than the sum of its proper divisors (90016271).

12332210221 is an equidigital number, since it uses as much as digits as its factorization.

12332210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90016270.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12332210221 its reverse (12201223321), we get a palindrome (24533433542).

The spelling of 12332210221 in words is "twelve billion, three hundred thirty-two million, two hundred ten thousand, two hundred twenty-one".