22020443 has 2 divisors, whose sum is σ = 22020444. Its totient is φ = 22020442.

The previous prime is 22020431. The next prime is 22020497. The reversal of 22020443 is 34402022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22020443 - 2⁶ = 22020379 is a prime.

It is not a weakly prime, because it can be changed into another prime (22020413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010221 + 11010222.

It is an arithmetic number, because the mean of its divisors is an integer number (11010222).

Almost surely, 2^22020443 is an apocalyptic number.

22020443 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020443 is an equidigital number, since it uses as much as digits as its factorization.

22020443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22020443 is about 4692.5944849305. The cubic root of 22020443 is about 280.2906972420.

Adding to 22020443 its reverse (34402022), we get a palindrome (56422465).

The spelling of 22020443 in words is "twenty-two million, twenty thousand, four hundred forty-three".