20102202200191 has 2 divisors, whose sum is σ = 20102202200192. Its totient is φ = 20102202200190.

The previous prime is 20102202200161. The next prime is 20102202200207. The reversal of 20102202200191 is 19100220220102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102202200191 - 2⁹ = 20102202199679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102202200131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051101100095 + 10051101100096.

It is an arithmetic number, because the mean of its divisors is an integer number (10051101100096).

Almost surely, 2^{20102202200191} is an apocalyptic number.

20102202200191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102202200191 is an equidigital number, since it uses as much as digits as its factorization.

20102202200191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 20102202200191 its reverse (19100220220102), we get a palindrome (39202422420293).

The spelling of 20102202200191 in words is "twenty trillion, one hundred two billion, two hundred two million, two hundred thousand, one hundred ninety-one".