22020145145 has 16 divisors (see below), whose sum is σ = 27742234752. Its totient is φ = 16746808320.

The previous prime is 22020145127. The next prime is 22020145159. The reversal of 22020145145 is 54154102022.

It is not a de Polignac number, because 22020145145 - 2³² = 17725177849 is a prime.

It is a Duffinian 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, 568616 + ... + 606105.

It is an arithmetic number, because the mean of its divisors is an integer number (1733889672).

Almost surely, 2^22020145145 is an apocalyptic number.

It is an amenable number.

22020145145 is a deficient number, since it is larger than the sum of its proper divisors (5722089607).

22020145145 is a wasteful number, since it uses less digits than its factorization.

22020145145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174912.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 22020145145 its reverse (54154102022), we get a palindrome (76174247167).

The spelling of 22020145145 in words is "twenty-two billion, twenty million, one hundred forty-five thousand, one hundred forty-five".