144403042221 has 16 divisors (see below), whose sum is σ = 221307345600. Its totient is φ = 92949084144.

The previous prime is 144403042213. The next prime is 144403042247. The reversal of 144403042221 is 122240304441.

It is not a de Polignac number, because 144403042221 - 2³ = 144403042213 is a prime.

It is a super-3 number, since 3×144403042221³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144403042271) 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, 92210611 + ... + 92212176.

It is an arithmetic number, because the mean of its divisors is an integer number (13831709100).

Almost surely, 2^144403042221 is an apocalyptic number.

It is an amenable number.

144403042221 is a deficient number, since it is larger than the sum of its proper divisors (76904303379).

144403042221 is a wasteful number, since it uses less digits than its factorization.

144403042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184422825 (or 184422819 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 144403042221 its reverse (122240304441), we get a palindrome (266643346662).

The spelling of 144403042221 in words is "one hundred forty-four billion, four hundred three million, forty-two thousand, two hundred twenty-one".