14221424232221 has 4 divisors (see below), whose sum is σ = 14227868015232. Its totient is φ = 14214980449212.

The previous prime is 14221424232193. The next prime is 14221424232233. The reversal of 14221424232221 is 12223242412241.

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 14221424232221 - 2²² = 14221420037917 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 (14221424231221) 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, 3221888195 + ... + 3221892608.

It is an arithmetic number, because the mean of its divisors is an integer number (3556967003808).

Almost surely, 2^{14221424232221} is an apocalyptic number.

It is an amenable number.

14221424232221 is a deficient number, since it is larger than the sum of its proper divisors (6443783011).

14221424232221 is an equidigital number, since it uses as much as digits as its factorization.

14221424232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443783010.

The product of its digits is 24576, while the sum is 32.

Adding to 14221424232221 its reverse (12223242412241), we get a palindrome (26444666644462).

The spelling of 14221424232221 in words is "fourteen trillion, two hundred twenty-one billion, four hundred twenty-four million, two hundred thirty-two thousand, two hundred twenty-one".