14442131221 has 4 divisors (see below), whose sum is σ = 16505292832. Its totient is φ = 12378969612.

The previous prime is 14442131219. The next prime is 14442131239. The reversal of 14442131221 is 12213124441.

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: 12213124441 = 7 ⋅1744732063.

It is a cyclic number.

It is not a de Polignac number, because 14442131221 - 2¹ = 14442131219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14442131321) 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, 1031580795 + ... + 1031580808.

It is an arithmetic number, because the mean of its divisors is an integer number (4126323208).

Almost surely, 2^14442131221 is an apocalyptic number.

It is an amenable number.

14442131221 is a deficient number, since it is larger than the sum of its proper divisors (2063161611).

14442131221 is an equidigital number, since it uses as much as digits as its factorization.

14442131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063161610.

The product of its digits is 1536, while the sum is 25.

Adding to 14442131221 its reverse (12213124441), we get a palindrome (26655255662).

The spelling of 14442131221 in words is "fourteen billion, four hundred forty-two million, one hundred thirty-one thousand, two hundred twenty-one".