144221414441 has 4 divisors (see below), whose sum is σ = 155315369412. Its totient is φ = 133127459472.

The previous prime is 144221414413. The next prime is 144221414443. The reversal of 144221414441 is 144414122441.

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 7413898816 + 136807515625 = 86104^2 + 369875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144221414441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144221414398 and 144221414407.

It is not an unprimeable number, because it can be changed into a prime (144221414443) 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, 5546977466 + ... + 5546977491.

It is an arithmetic number, because the mean of its divisors is an integer number (38828842353).

Almost surely, 2^144221414441 is an apocalyptic number.

It is an amenable number.

144221414441 is a deficient number, since it is larger than the sum of its proper divisors (11093954971).

144221414441 is a wasteful number, since it uses less digits than its factorization.

144221414441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093954970.

The product of its digits is 16384, while the sum is 32.

Adding to 144221414441 its reverse (144414122441), we get a palindrome (288635536882).

The spelling of 144221414441 in words is "one hundred forty-four billion, two hundred twenty-one million, four hundred fourteen thousand, four hundred forty-one".