14381221 has 4 divisors (see below), whose sum is σ = 14715712. Its totient is φ = 14046732.

The previous prime is 14381207. The next prime is 14381249. The reversal of 14381221 is 12218341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12218341 = 1153 ⋅10597.

It is a cyclic number.

It is not a de Polignac number, because 14381221 - 2⁵ = 14381189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14381192 and 14381201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14381251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167181 + ... + 167266.

It is an arithmetic number, because the mean of its divisors is an integer number (3678928).

Almost surely, 2^14381221 is an apocalyptic number.

It is an amenable number.

14381221 is a deficient number, since it is larger than the sum of its proper divisors (334491).

14381221 is an equidigital number, since it uses as much as digits as its factorization.

14381221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334490.

The product of its digits is 384, while the sum is 22.

The square root of 14381221 is about 3792.2580344697. The cubic root of 14381221 is about 243.1822767141.

Adding to 14381221 its reverse (12218341), we get a palindrome (26599562).

The spelling of 14381221 in words is "fourteen million, three hundred eighty-one thousand, two hundred twenty-one".