22020541 has 4 divisors (see below), whose sum is σ = 22779900. Its totient is φ = 21261184.

The previous prime is 22020533. The next prime is 22020547. The reversal of 22020541 is 14502022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14502022 = 2 ⋅7251011.

It can be written as a sum of positive squares in 2 ways, for example, as 7958041 + 14062500 = 2821^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 22020541 - 2³ = 22020533 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379636 + ... + 379693.

It is an arithmetic number, because the mean of its divisors is an integer number (5694975).

Almost surely, 2^22020541 is an apocalyptic number.

It is an amenable number.

22020541 is a deficient number, since it is larger than the sum of its proper divisors (759359).

22020541 is an equidigital number, since it uses as much as digits as its factorization.

22020541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759358.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22020541 is about 4692.6049269036. The cubic root of 22020541 is about 280.2911130443.

Adding to 22020541 its reverse (14502022), we get a palindrome (36522563).

The spelling of 22020541 in words is "twenty-two million, twenty thousand, five hundred forty-one".