20202211200191 has 2 divisors, whose sum is σ = 20202211200192. Its totient is φ = 20202211200190.

The previous prime is 20202211200173. The next prime is 20202211200229. The reversal of 20202211200191 is 19100211220202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20202211200191 - 2¹⁴ = 20202211183807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202211200161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101105600095 + 10101105600096.

It is an arithmetic number, because the mean of its divisors is an integer number (10101105600096).

Almost surely, 2^{20202211200191} is an apocalyptic number.

20202211200191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202211200191 is an equidigital number, since it uses as much as digits as its factorization.

20202211200191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 20202211200191 its reverse (19100211220202), we get a palindrome (39302422420393).

The spelling of 20202211200191 in words is "twenty trillion, two hundred two billion, two hundred eleven million, two hundred thousand, one hundred ninety-one".