12221303332213 has 4 divisors (see below), whose sum is σ = 12223705795200. Its totient is φ = 12218900869228.

The previous prime is 12221303332093. The next prime is 12221303332223. The reversal of 12221303332213 is 31223330312221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221303332213 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 (12221303332223) 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, 1201223863 + ... + 1201234036.

It is an arithmetic number, because the mean of its divisors is an integer number (3055926448800).

Almost surely, 2^{12221303332213} is an apocalyptic number.

It is an amenable number.

12221303332213 is a deficient number, since it is larger than the sum of its proper divisors (2402462987).

12221303332213 is an equidigital number, since it uses as much as digits as its factorization.

12221303332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402462986.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12221303332213 its reverse (31223330312221), we get a palindrome (43444633644434).

The spelling of 12221303332213 in words is "twelve trillion, two hundred twenty-one billion, three hundred three million, three hundred thirty-two thousand, two hundred thirteen".