22020543 has 12 divisors (see below), whose sum is σ = 31848960. Its totient is φ = 14661216.

The previous prime is 22020533. The next prime is 22020547. The reversal of 22020543 is 34502022.

It is not a de Polignac number, because 22020543 - 2⁴ = 22020527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10555 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (2654080).

Almost surely, 2^22020543 is an apocalyptic number.

22020543 is a deficient number, since it is larger than the sum of its proper divisors (9828417).

22020543 is a wasteful number, since it uses less digits than its factorization.

22020543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198 (or 3195 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22020543 is about 4692.6051400049. The cubic root of 22020543 is about 280.2911215300.

Adding to 22020543 its reverse (34502022), we get a palindrome (56522565).

The spelling of 22020543 in words is "twenty-two million, twenty thousand, five hundred forty-three".