14221413221 has 4 divisors (see below), whose sum is σ = 14306571552. Its totient is φ = 14136254892.

The previous prime is 14221413163. The next prime is 14221413253. The reversal of 14221413221 is 12231412241.

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.

It is a cyclic number.

It is not a de Polignac number, because 14221413221 - 2¹⁰ = 14221412197 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 (14221413281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42578915 + ... + 42579248.

It is an arithmetic number, because the mean of its divisors is an integer number (3576642888).

Almost surely, 2^14221413221 is an apocalyptic number.

It is an amenable number.

14221413221 is a deficient number, since it is larger than the sum of its proper divisors (85158331).

14221413221 is an equidigital number, since it uses as much as digits as its factorization.

14221413221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85158330.

The product of its digits is 768, while the sum is 23.

Adding to 14221413221 its reverse (12231412241), we get a palindrome (26452825462).

The spelling of 14221413221 in words is "fourteen billion, two hundred twenty-one million, four hundred thirteen thousand, two hundred twenty-one".