14221111 has 4 divisors (see below), whose sum is σ = 14229000. Its totient is φ = 14213224.

The previous prime is 14221093. The next prime is 14221127. The reversal of 14221111 is 11112241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14221111 - 2²¹ = 12123959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14221091 and 14221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240 + ... + 5338.

It is an arithmetic number, because the mean of its divisors is an integer number (3557250).

Almost surely, 2^14221111 is an apocalyptic number.

14221111 is a deficient number, since it is larger than the sum of its proper divisors (7889).

14221111 is an equidigital number, since it uses as much as digits as its factorization.

14221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888.

The product of its digits is 16, while the sum is 13.

The square root of 14221111 is about 3771.0888348062. The cubic root of 14221111 is about 242.2764354692.

Adding to 14221111 its reverse (11112241), we get a palindrome (25333352).

The spelling of 14221111 in words is "fourteen million, two hundred twenty-one thousand, one hundred eleven".