4440402341221 has 32 divisors (see below), whose sum is σ = 5542382361600. Its totient is φ = 3456120998400.

The previous prime is 4440402341213. The next prime is 4440402341233. The reversal of 4440402341221 is 1221432040444.

It is a happy number.

It is not a de Polignac number, because 4440402341221 - 2³ = 4440402341213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440402341251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269417301 + ... + 269433781.

It is an arithmetic number, because the mean of its divisors is an integer number (173199448800).

Almost surely, 2^{4440402341221} is an apocalyptic number.

It is an amenable number.

4440402341221 is a deficient number, since it is larger than the sum of its proper divisors (1101980020379).

4440402341221 is a wasteful number, since it uses less digits than its factorization.

4440402341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20265.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4440402341221 its reverse (1221432040444), we get a palindrome (5661834381665).

The spelling of 4440402341221 in words is "four trillion, four hundred forty billion, four hundred two million, three hundred forty-one thousand, two hundred twenty-one".