13221221221322 has 8 divisors (see below), whose sum is σ = 19839212499456. Its totient is φ = 6608150388172.

The previous prime is 13221221221321. The next prime is 13221221221331. The reversal of 13221221221322 is 22312212212231.

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

It is a junction number, because it is equal to n+sod(n) for n = 13221221221291 and 13221221221300.

It is not an unprimeable number, because it can be changed into a prime (13221221221321) 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, 1230104528 + ... + 1230115275.

It is an arithmetic number, because the mean of its divisors is an integer number (2479901562432).

Almost surely, 2^{13221221221322} is an apocalyptic number.

13221221221322 is a deficient number, since it is larger than the sum of its proper divisors (6617991278134).

13221221221322 is a wasteful number, since it uses less digits than its factorization.

13221221221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460222492.

The product of its digits is 2304, while the sum is 26.

Adding to 13221221221322 its reverse (22312212212231), we get a palindrome (35533433433553).

Subtracting 13221221221322 from its reverse (22312212212231), we obtain a palindrome (9090990990909).

The spelling of 13221221221322 in words is "thirteen trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, three hundred twenty-two".