11044404420021 has 144 divisors (see below), whose sum is σ = 19718873456256. Its totient is φ = 5832097479936.

The previous prime is 11044404419999. The next prime is 11044404420041. The reversal of 11044404420021 is 12002440444011.

It is a happy number.

11044404420021 is a `hidden beast` number, since 1 + 10 + 4 + 440 + 4 + 4 + 200 + 2 + 1 = 666.

It is not a de Polignac number, because 11044404420021 - 2¹⁰ = 11044404418997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11044404420041) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 208504086 + ... + 208557048.

It is an arithmetic number, because the mean of its divisors is an integer number (136936621224).

Almost surely, 2^{11044404420021} is an apocalyptic number.

It is an amenable number.

11044404420021 is a deficient number, since it is larger than the sum of its proper divisors (8674469036235).

11044404420021 is a wasteful number, since it uses less digits than its factorization.

11044404420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53240 (or 53218 counting only the distinct ones).

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

Adding to 11044404420021 its reverse (12002440444011), we get a palindrome (23046844864032).

The spelling of 11044404420021 in words is "eleven trillion, forty-four billion, four hundred four million, four hundred twenty thousand, twenty-one".