144013243221 has 16 divisors (see below), whose sum is σ = 220235307520. Its totient is φ = 92911769280.

The previous prime is 144013243219. The next prime is 144013243243. The reversal of 144013243221 is 122342310441.

144013243221 is a `hidden beast` number, since 1 + 4 + 401 + 32 + 4 + 3 + 221 = 666.

It is not a de Polignac number, because 144013243221 - 2¹ = 144013243219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144013243271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86028580 + ... + 86030253.

It is an arithmetic number, because the mean of its divisors is an integer number (13764706720).

Almost surely, 2^144013243221 is an apocalyptic number.

It is an amenable number.

144013243221 is a deficient number, since it is larger than the sum of its proper divisors (76222064299).

144013243221 is a wasteful number, since it uses less digits than its factorization.

144013243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172058873 (or 172058867 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 144013243221 its reverse (122342310441), we get a palindrome (266355553662).

The spelling of 144013243221 in words is "one hundred forty-four billion, thirteen million, two hundred forty-three thousand, two hundred twenty-one".