144104404221 has 12 divisors (see below), whose sum is σ = 208156547872. Its totient is φ = 96066952776.

The previous prime is 144104404207. The next prime is 144104404259. The reversal of 144104404221 is 122404401441.

It is a happy number.

It is not a de Polignac number, because 144104404221 - 2²⁵ = 144070849789 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 (144104404261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157710 + ... + 559536.

Almost surely, 2^144104404221 is an apocalyptic number.

It is an amenable number.

144104404221 is a deficient number, since it is larger than the sum of its proper divisors (64052143651).

144104404221 is a wasteful number, since it uses less digits than its factorization.

144104404221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441680 (or 441677 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 144104404221 its reverse (122404401441), we get a palindrome (266508805662).

The spelling of 144104404221 in words is "one hundred forty-four billion, one hundred four million, four hundred four thousand, two hundred twenty-one".