20202022189 has 2 divisors, whose sum is σ = 20202022190. Its totient is φ = 20202022188.

The previous prime is 20202022187. The next prime is 20202022241. The reversal of 20202022189 is 98122020202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11522304964 + 8679717225 = 107342^2 + 93165^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202022189 - 2¹ = 20202022187 is a prime.

Together with 20202022187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202022187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101011094 + 10101011095.

It is an arithmetic number, because the mean of its divisors is an integer number (10101011095).

Almost surely, 2^20202022189 is an apocalyptic number.

It is an amenable number.

20202022189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202022189 is an equidigital number, since it uses as much as digits as its factorization.

20202022189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 20202022189 in words is "twenty billion, two hundred two million, twenty-two thousand, one hundred eighty-nine".