14402221 has 4 divisors (see below), whose sum is σ = 14411772. Its totient is φ = 14392672.

The previous prime is 14402177. The next prime is 14402231. The reversal of 14402221 is 12220441.

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 can be written as a sum of positive squares in 2 ways, for example, as 9066121 + 5336100 = 3011^2 + 2310^2 .

It is a cyclic number.

It is not a de Polignac number, because 14402221 - 2¹⁷ = 14271149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14402195 and 14402204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14402231) 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, 1960 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (3602943).

Almost surely, 2^14402221 is an apocalyptic number.

It is an amenable number.

14402221 is a deficient number, since it is larger than the sum of its proper divisors (9551).

14402221 is an equidigital number, since it uses as much as digits as its factorization.

14402221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9550.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 14402221 is about 3795.0258233641. The cubic root of 14402221 is about 243.3005871157.

Adding to 14402221 its reverse (12220441), we get a palindrome (26622662).

The spelling of 14402221 in words is "fourteen million, four hundred two thousand, two hundred twenty-one".