12132330221 has 8 divisors (see below), whose sum is σ = 13662213888. Its totient is φ = 10673604000.

The previous prime is 12132330169. The next prime is 12132330233. The reversal of 12132330221 is 12203323121.

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

It is a cyclic number.

It is not a de Polignac number, because 12132330221 - 2¹⁰ = 12132329197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12132330193 and 12132330202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132330251) 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, 17789000 + ... + 17789681.

It is an arithmetic number, because the mean of its divisors is an integer number (1707776736).

Almost surely, 2^12132330221 is an apocalyptic number.

12132330221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12132330221 is a deficient number, since it is larger than the sum of its proper divisors (1529883667).

12132330221 is a wasteful number, since it uses less digits than its factorization.

12132330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35578723.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12132330221 its reverse (12203323121), we get a palindrome (24335653342).

The spelling of 12132330221 in words is "twelve billion, one hundred thirty-two million, three hundred thirty thousand, two hundred twenty-one".