13321222111 has 4 divisors (see below), whose sum is σ = 13334143824. Its totient is φ = 13308300400.

The previous prime is 13321222081. The next prime is 13321222127. The reversal of 13321222111 is 11122212331.

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

It is a cyclic number.

It is not a de Polignac number, because 13321222111 - 2²³ = 13312833503 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 (13321222141) 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, 6459310 + ... + 6461371.

It is an arithmetic number, because the mean of its divisors is an integer number (3333535956).

Almost surely, 2^13321222111 is an apocalyptic number.

13321222111 is a deficient number, since it is larger than the sum of its proper divisors (12921713).

13321222111 is a wasteful number, since it uses less digits than its factorization.

13321222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921712.

The product of its digits is 144, while the sum is 19.

Adding to 13321222111 its reverse (11122212331), we get a palindrome (24443434442).

The spelling of 13321222111 in words is "thirteen billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred eleven".