10211021100191 has 2 divisors, whose sum is σ = 10211021100192. Its totient is φ = 10211021100190.

The previous prime is 10211021100169. The next prime is 10211021100223. The reversal of 10211021100191 is 19100112011201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10211021100191 - 2⁶ = 10211021100127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10211021100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105510550095 + 5105510550096.

It is an arithmetic number, because the mean of its divisors is an integer number (5105510550096).

Almost surely, 2^{10211021100191} is an apocalyptic number.

10211021100191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211021100191 is an equidigital number, since it uses as much as digits as its factorization.

10211021100191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 10211021100191 its reverse (19100112011201), we get a palindrome (29311133111392).

The spelling of 10211021100191 in words is "ten trillion, two hundred eleven billion, twenty-one million, one hundred thousand, one hundred ninety-one".