12221113133 has 4 divisors (see below), whose sum is σ = 12271823388. Its totient is φ = 12170402880.

The previous prime is 12221113127. The next prime is 12221113189. The reversal of 12221113133 is 33131112221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7059696484 + 5161416649 = 84022^2 + 71843^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221113133 - 2⁸ = 12221112877 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 (12221113123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25354766 + ... + 25355247.

It is an arithmetic number, because the mean of its divisors is an integer number (3067955847).

Almost surely, 2^12221113133 is an apocalyptic number.

It is an amenable number.

12221113133 is a deficient number, since it is larger than the sum of its proper divisors (50710255).

12221113133 is an equidigital number, since it uses as much as digits as its factorization.

12221113133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50710254.

The product of its digits is 216, while the sum is 20.

Adding to 12221113133 its reverse (33131112221), we get a palindrome (45352225354).

The spelling of 12221113133 in words is "twelve billion, two hundred twenty-one million, one hundred thirteen thousand, one hundred thirty-three".