20102211089 has 2 divisors, whose sum is σ = 20102211090. Its totient is φ = 20102211088.

The previous prime is 20102211079. The next prime is 20102211127. The reversal of 20102211089 is 98011220102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18821644864 + 1280566225 = 137192^2 + 35785^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102211089 - 2²⁰ = 20101162513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20102211079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051105544 + 10051105545.

It is an arithmetic number, because the mean of its divisors is an integer number (10051105545).

Almost surely, 2^20102211089 is an apocalyptic number.

It is an amenable number.

20102211089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102211089 is an equidigital number, since it uses as much as digits as its factorization.

20102211089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 20102211089 in words is "twenty billion, one hundred two million, two hundred eleven thousand, eighty-nine".