22021043005 has 16 divisors (see below), whose sum is σ = 28924492464. Its totient is φ = 15995105280.

The previous prime is 22021042999. The next prime is 22021043027. The reversal of 22021043005 is 50034012022.

It can be written as a sum of positive squares in 8 ways, for example, as 2480637636 + 19540405369 = 49806^2 + 139787^2 .

It is not a de Polignac number, because 22021043005 - 2²⁵ = 21987488573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2772964 + ... + 2780893.

It is an arithmetic number, because the mean of its divisors is an integer number (1807780779).

Almost surely, 2^22021043005 is an apocalyptic number.

It is an amenable number.

22021043005 is a deficient number, since it is larger than the sum of its proper divisors (6903449459).

22021043005 is a wasteful number, since it uses less digits than its factorization.

22021043005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553936.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 22021043005 its reverse (50034012022), we get a palindrome (72055055027).

The spelling of 22021043005 in words is "twenty-two billion, twenty-one million, forty-three thousand, five".