144244220221205 has 8 divisors (see below), whose sum is σ = 186407915362872. Its totient is φ = 106518808778688.

The previous prime is 144244220221183. The next prime is 144244220221243. The reversal of 144244220221205 is 502122022442441.

It can be written as a sum of positive squares in 4 ways, for example, as 595701481489 + 143648518739716 = 771817^2 + 11985346^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144244220221205 - 2⁸ = 144244220220949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109570924714 + ... + 1109570924843.

It is an arithmetic number, because the mean of its divisors is an integer number (23300989420359).

Almost surely, 2^{144244220221205} is an apocalyptic number.

It is an amenable number.

144244220221205 is a deficient number, since it is larger than the sum of its proper divisors (42163695141667).

144244220221205 is a wasteful number, since it uses less digits than its factorization.

144244220221205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219141849575.

The product of its (nonzero) digits is 81920, while the sum is 35.

Adding to 144244220221205 its reverse (502122022442441), we get a palindrome (646366242663646).

The spelling of 144244220221205 in words is "one hundred forty-four trillion, two hundred forty-four billion, two hundred twenty million, two hundred twenty-one thousand, two hundred five".