13222111 has 12 divisors (see below), whose sum is σ = 15492600. Its totient is φ = 11250960.

The previous prime is 13222109. The next prime is 13222123. The reversal of 13222111 is 11122231.

It is not a de Polignac number, because 13222111 - 2¹ = 13222109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13222091 and 13222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222411) 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 11 ways as a sum of consecutive naturals, for example, 6396 + ... + 8206.

It is an arithmetic number, because the mean of its divisors is an integer number (1291050).

Almost surely, 2^13222111 is an apocalyptic number.

13222111 is a deficient number, since it is larger than the sum of its proper divisors (2270489).

13222111 is a wasteful number, since it uses less digits than its factorization.

13222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1967 counting only the distinct ones).

The product of its digits is 24, while the sum is 13.

The square root of 13222111 is about 3636.2220779265. Note that the first 3 decimals coincide. The cubic root of 13222111 is about 236.4650351252.

Adding to 13222111 its reverse (11122231), we get a palindrome (24344342).

The spelling of 13222111 in words is "thirteen million, two hundred twenty-two thousand, one hundred eleven".