2421144441205 has 24 divisors (see below), whose sum is σ = 3451628947968. Its totient is φ = 1624889635488.

The previous prime is 2421144441203. The next prime is 2421144441211. The reversal of 2421144441205 is 5021444411242.

It is not a de Polignac number, because 2421144441205 - 2¹ = 2421144441203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421144441203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105118509 + ... + 105141538.

It is an arithmetic number, because the mean of its divisors is an integer number (143817872832).

Almost surely, 2^{2421144441205} is an apocalyptic number.

It is an amenable number.

2421144441205 is a deficient number, since it is larger than the sum of its proper divisors (1030484506763).

2421144441205 is a wasteful number, since it uses less digits than its factorization.

2421144441205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210260113 (or 210260106 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 34.

Adding to 2421144441205 its reverse (5021444411242), we get a palindrome (7442588852447).

The spelling of 2421144441205 in words is "two trillion, four hundred twenty-one billion, one hundred forty-four million, four hundred forty-one thousand, two hundred five".