144441234102221 has 4 divisors (see below), whose sum is σ = 165075696116832. Its totient is φ = 123806772087612.

The previous prime is 144441234102197. The next prime is 144441234102239. The reversal of 144441234102221 is 122201432144441.

It is a happy number.

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 144441234102221 - 2⁴⁶ = 74072489924557 is a prime.

It is a super-2 number, since 2×144441234102221² (a number of 29 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 (144441234102241) 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, 10317231007295 + ... + 10317231007308.

It is an arithmetic number, because the mean of its divisors is an integer number (41268924029208).

Almost surely, 2^{144441234102221} is an apocalyptic number.

It is an amenable number.

144441234102221 is a deficient number, since it is larger than the sum of its proper divisors (20634462014611).

144441234102221 is an equidigital number, since it uses as much as digits as its factorization.

144441234102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20634462014610.

The product of its (nonzero) digits is 49152, while the sum is 35.

Adding to 144441234102221 its reverse (122201432144441), we get a palindrome (266642666246662).

The spelling of 144441234102221 in words is "one hundred forty-four trillion, four hundred forty-one billion, two hundred thirty-four million, one hundred two thousand, two hundred twenty-one".