13266123330221 has 8 divisors (see below), whose sum is σ = 13306767302400. Its totient is φ = 13225516977600.

The previous prime is 13266123330211. The next prime is 13266123330227. The reversal of 13266123330221 is 12203332166231.

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 13266123330221 - 2¹⁴ = 13266123313837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13266123330227) 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, 8698451 + ... + 10109168.

It is an arithmetic number, because the mean of its divisors is an integer number (1663345912800).

Almost surely, 2^{13266123330221} is an apocalyptic number.

It is an amenable number.

13266123330221 is a deficient number, since it is larger than the sum of its proper divisors (40643972179).

13266123330221 is a wasteful number, since it uses less digits than its factorization.

13266123330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809779.

The product of its (nonzero) digits is 46656, while the sum is 35.

Adding to 13266123330221 its reverse (12203332166231), we get a palindrome (25469455496452).

The spelling of 13266123330221 in words is "thirteen trillion, two hundred sixty-six billion, one hundred twenty-three million, three hundred thirty thousand, two hundred twenty-one".