220040444441 has 4 divisors (see below), whose sum is σ = 220042441572. Its totient is φ = 220038447312.

The previous prime is 220040444431. The next prime is 220040444473. The reversal of 220040444441 is 144444040022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140955193600 + 79085250841 = 375440^2 + 281221^2 .

It is a cyclic number.

It is not a de Polignac number, because 220040444441 - 2¹⁴ = 220040428057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220040444431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823010 + ... + 1057083.

It is an arithmetic number, because the mean of its divisors is an integer number (55010610393).

Almost surely, 2^220040444441 is an apocalyptic number.

It is an amenable number.

220040444441 is a deficient number, since it is larger than the sum of its proper divisors (1997131).

220040444441 is a wasteful number, since it uses less digits than its factorization.

220040444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997130.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 220040444441 its reverse (144444040022), we get a palindrome (364484484463).

The spelling of 220040444441 in words is "two hundred twenty billion, forty million, four hundred forty-four thousand, four hundred forty-one".