22021042045 has 16 divisors (see below), whose sum is σ = 27306846720. Its totient is φ = 17030318400.

The previous prime is 22021042039. The next prime is 22021042049. The reversal of 22021042045 is 54024012022.

It is not a de Polignac number, because 22021042045 - 2³ = 22021042037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021042049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70366 + ... + 221344.

It is an arithmetic number, because the mean of its divisors is an integer number (1706677920).

Almost surely, 2^22021042045 is an apocalyptic number.

It is an amenable number.

22021042045 is a deficient number, since it is larger than the sum of its proper divisors (5285804675).

22021042045 is a wasteful number, since it uses less digits than its factorization.

22021042045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151956.

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 22021042045 its reverse (54024012022), we get a palindrome (76045054067).

The spelling of 22021042045 in words is "twenty-two billion, twenty-one million, forty-two thousand, forty-five".