14421041221 has 4 divisors (see below), whose sum is σ = 14423499244. Its totient is φ = 14418583200.

The previous prime is 14421041213. The next prime is 14421041251. The reversal of 14421041221 is 12214012441.

14421041221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13574813121 + 846228100 = 116511^2 + 29090^2 .

It is a cyclic number.

It is not a de Polignac number, because 14421041221 - 2³ = 14421041213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14421041192 and 14421041201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14421041251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220190 + ... + 1231951.

It is an arithmetic number, because the mean of its divisors is an integer number (3605874811).

Almost surely, 2^14421041221 is an apocalyptic number.

It is an amenable number.

14421041221 is a deficient number, since it is larger than the sum of its proper divisors (2458023).

14421041221 is an equidigital number, since it uses as much as digits as its factorization.

14421041221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458022.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 14421041221 its reverse (12214012441), we get a palindrome (26635053662).

The spelling of 14421041221 in words is "fourteen billion, four hundred twenty-one million, forty-one thousand, two hundred twenty-one".