13221333133 has 4 divisors (see below), whose sum is σ = 13796173728. Its totient is φ = 12646492540.

The previous prime is 13221333121. The next prime is 13221333161. The reversal of 13221333133 is 33133312231.

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-13221333133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221333098 and 13221333107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221333163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287420263 + ... + 287420308.

It is an arithmetic number, because the mean of its divisors is an integer number (3449043432).

Almost surely, 2^13221333133 is an apocalyptic number.

It is an amenable number.

13221333133 is a deficient number, since it is larger than the sum of its proper divisors (574840595).

13221333133 is an equidigital number, since it uses as much as digits as its factorization.

13221333133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574840594.

The product of its digits is 2916, while the sum is 25.

Adding to 13221333133 its reverse (33133312231), we get a palindrome (46354645364).

The spelling of 13221333133 in words is "thirteen billion, two hundred twenty-one million, three hundred thirty-three thousand, one hundred thirty-three".