14243204221 has 4 divisors (see below), whose sum is σ = 14252784192. Its totient is φ = 14233624252.

The previous prime is 14243204207. The next prime is 14243204243. The reversal of 14243204221 is 12240234241.

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 14243204221 - 2⁵ = 14243204189 is a prime.

It is a super-2 number, since 2×14243204221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14243204021) 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, 4787755 + ... + 4790728.

It is an arithmetic number, because the mean of its divisors is an integer number (3563196048).

Almost surely, 2^14243204221 is an apocalyptic number.

It is an amenable number.

14243204221 is a deficient number, since it is larger than the sum of its proper divisors (9579971).

14243204221 is an equidigital number, since it uses as much as digits as its factorization.

14243204221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579970.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 14243204221 its reverse (12240234241), we get a palindrome (26483438462).

The spelling of 14243204221 in words is "fourteen billion, two hundred forty-three million, two hundred four thousand, two hundred twenty-one".