12231330221 has 8 divisors (see below), whose sum is σ = 14128167744. Its totient is φ = 10465309120.

The previous prime is 12231330211. The next prime is 12231330227. The reversal of 12231330221 is 12203313221.

12231330221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12231330221 - 2²² = 12227135917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12231330193 and 12231330202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231330227) 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 7 ways as a sum of consecutive naturals, for example, 32703905 + ... + 32704278.

It is an arithmetic number, because the mean of its divisors is an integer number (1766020968).

Almost surely, 2^12231330221 is an apocalyptic number.

12231330221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12231330221 is a deficient number, since it is larger than the sum of its proper divisors (1896837523).

12231330221 is a wasteful number, since it uses less digits than its factorization.

12231330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65408211.

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

Adding to 12231330221 its reverse (12203313221), we get a palindrome (24434643442).

The spelling of 12231330221 in words is "twelve billion, two hundred thirty-one million, three hundred thirty thousand, two hundred twenty-one".