144023214221 has 4 divisors (see below), whose sum is σ = 144023996892. Its totient is φ = 144022431552.

The previous prime is 144023214187. The next prime is 144023214241. The reversal of 144023214221 is 122412320441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 112050198121 + 31973016100 = 334739^2 + 178810^2 .

It is a cyclic number.

It is not a de Polignac number, because 144023214221 - 2¹⁰ = 144023213197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144023214241) 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, 52421 + ... + 539253.

It is an arithmetic number, because the mean of its divisors is an integer number (36005999223).

Almost surely, 2^144023214221 is an apocalyptic number.

It is an amenable number.

144023214221 is a deficient number, since it is larger than the sum of its proper divisors (782671).

144023214221 is an equidigital number, since it uses as much as digits as its factorization.

144023214221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782670.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 144023214221 its reverse (122412320441), we get a palindrome (266435534662).

The spelling of 144023214221 in words is "one hundred forty-four billion, twenty-three million, two hundred fourteen thousand, two hundred twenty-one".