22020145443 has 6 divisors (see below), whose sum is σ = 31806876764. Its totient is φ = 14680096956.

The previous prime is 22020145423. The next prime is 22020145487. The reversal of 22020145443 is 34454102022.

22020145443 is a `hidden beast` number, since 2 + 2 + 0 + 201 + 454 + 4 + 3 = 666.

It is not a de Polignac number, because 22020145443 - 2⁸ = 22020145187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22020145423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1223341405 + ... + 1223341422.

Almost surely, 2^22020145443 is an apocalyptic number.

22020145443 is a deficient number, since it is larger than the sum of its proper divisors (9786731321).

22020145443 is a wasteful number, since it uses less digits than its factorization.

22020145443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446682833 (or 2446682830 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22020145443 its reverse (34454102022), we get a palindrome (56474247465).

The spelling of 22020145443 in words is "twenty-two billion, twenty million, one hundred forty-five thousand, four hundred forty-three".