14220111 has 4 divisors (see below), whose sum is σ = 18960152. Its totient is φ = 9480072.

The previous prime is 14220097. The next prime is 14220127. The reversal of 14220111 is 11102241.

It is a happy number.

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

It is not a de Polignac number, because 14220111 - 2¹⁴ = 14203727 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 (14220131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370016 + ... + 2370021.

It is an arithmetic number, because the mean of its divisors is an integer number (4740038).

Almost surely, 2^14220111 is an apocalyptic number.

14220111 is a deficient number, since it is larger than the sum of its proper divisors (4740041).

14220111 is an equidigital number, since it uses as much as digits as its factorization.

14220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740040.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 14220111 is about 3770.9562447740. The cubic root of 14220111 is about 242.2707565384.

Adding to 14220111 its reverse (11102241), we get a palindrome (25322352).

The spelling of 14220111 in words is "fourteen million, two hundred twenty thousand, one hundred eleven".