22020209971 has 2 divisors, whose sum is σ = 22020209972. Its totient is φ = 22020209970.

The previous prime is 22020209963. The next prime is 22020209993. The reversal of 22020209971 is 17990202022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22020209971 - 2³ = 22020209963 is a prime.

It is not a weakly prime, because it can be changed into another prime (22020209951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010104985 + 11010104986.

It is an arithmetic number, because the mean of its divisors is an integer number (11010104986).

Almost surely, 2^22020209971 is an apocalyptic number.

22020209971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020209971 is an equidigital number, since it uses as much as digits as its factorization.

22020209971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 22020209971 in words is "twenty-two billion, twenty million, two hundred nine thousand, nine hundred seventy-one".