12221330213 has 8 divisors (see below), whose sum is σ = 12411711000. Its totient is φ = 12032128768.

The previous prime is 12221330201. The next prime is 12221330237. The reversal of 12221330213 is 31203312221.

12221330213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 474455524 + 11746874689 = 21782^2 + 108383^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221330213 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 (12221330273) 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, 273938 + ... + 315411.

It is an arithmetic number, because the mean of its divisors is an integer number (1551463875).

Almost surely, 2^12221330213 is an apocalyptic number.

It is an amenable number.

12221330213 is a deficient number, since it is larger than the sum of its proper divisors (190380787).

12221330213 is an equidigital number, since it uses as much as digits as its factorization.

12221330213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589671.

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

Adding to 12221330213 its reverse (31203312221), we get a palindrome (43424642434).

The spelling of 12221330213 in words is "twelve billion, two hundred twenty-one million, three hundred thirty thousand, two hundred thirteen".