13221003122 has 8 divisors (see below), whose sum is σ = 20998063836. Its totient is φ = 6221648512.

The previous prime is 13221003079. The next prime is 13221003143. The reversal of 13221003122 is 22130012231.

It can be written as a sum of positive squares in 2 ways, for example, as 13089419281 + 131583841 = 114409^2 + 11471^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 13221003122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194426483 + ... + 194426550.

Almost surely, 2^13221003122 is an apocalyptic number.

13221003122 is a deficient number, since it is larger than the sum of its proper divisors (7777060714).

13221003122 is a wasteful number, since it uses less digits than its factorization.

13221003122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388853052.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13221003122 its reverse (22130012231), we get a palindrome (35351015353).

The spelling of 13221003122 in words is "thirteen billion, two hundred twenty-one million, three thousand, one hundred twenty-two".