14221121 has 4 divisors (see below), whose sum is σ = 14351700. Its totient is φ = 14090544.

The previous prime is 14221093. The next prime is 14221127. The reversal of 14221121 is 12112241.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8880400 + 5340721 = 2980^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 14221121 - 2¹⁰ = 14220097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14221096 and 14221105.

It is not an unprimeable number, because it can be changed into a prime (14221127) 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, 65126 + ... + 65343.

It is an arithmetic number, because the mean of its divisors is an integer number (3587925).

Almost surely, 2^14221121 is an apocalyptic number.

It is an amenable number.

14221121 is a deficient number, since it is larger than the sum of its proper divisors (130579).

14221121 is a wasteful number, since it uses less digits than its factorization.

14221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130578.

The product of its digits is 32, while the sum is 14.

The square root of 14221121 is about 3771.0901606830. The cubic root of 14221121 is about 242.2764922571.

Adding to 14221121 its reverse (12112241), we get a palindrome (26333362).

The spelling of 14221121 in words is "fourteen million, two hundred twenty-one thousand, one hundred twenty-one".