44120355021 has 56 divisors (see below), whose sum is σ = 67438065024. Its totient is φ = 28845421920.

The previous prime is 44120355011. The next prime is 44120355043. The reversal of 44120355021 is 12055302144.

44120355021 is a `hidden beast` number, since 4 + 4 + 120 + 35 + 502 + 1 = 666.

It is not a de Polignac number, because 44120355021 - 2⁵ = 44120354989 is a prime.

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 (44120355001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 10194360 + ... + 10198686.

Almost surely, 2^44120355021 is an apocalyptic number.

It is an amenable number.

44120355021 is a deficient number, since it is larger than the sum of its proper divisors (23317710003).

44120355021 is an equidigital number, since it uses as much as digits as its factorization.

44120355021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613 (or 4598 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 44120355021 its reverse (12055302144), we get a palindrome (56175657165).

The spelling of 44120355021 in words is "forty-four billion, one hundred twenty million, three hundred fifty-five thousand, twenty-one".