14204221 has 4 divisors (see below), whose sum is σ = 14278012. Its totient is φ = 14130432.

The previous prime is 14204219. The next prime is 14204237. The reversal of 14204221 is 12240241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12240241 = 13 ⋅941557.

It can be written as a sum of positive squares in 2 ways, for example, as 6832996 + 7371225 = 2614^2 + 2715^2 .

It is a cyclic number.

It is not a de Polignac number, because 14204221 - 2¹ = 14204219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14204195 and 14204204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14204621) 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, 36606 + ... + 36991.

It is an arithmetic number, because the mean of its divisors is an integer number (3569503).

Almost surely, 2^14204221 is an apocalyptic number.

It is an amenable number.

14204221 is a deficient number, since it is larger than the sum of its proper divisors (73791).

14204221 is an equidigital number, since it uses as much as digits as its factorization.

14204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73790.

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

The square root of 14204221 is about 3768.8487632167. The cubic root of 14204221 is about 242.1804825799.

Adding to 14204221 its reverse (12240241), we get a palindrome (26444462).

The spelling of 14204221 in words is "fourteen million, two hundred four thousand, two hundred twenty-one".