10010101122191 has 2 divisors, whose sum is σ = 10010101122192. Its totient is φ = 10010101122190.

The previous prime is 10010101122169. The next prime is 10010101122247. The reversal of 10010101122191 is 19122110101001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10010101122191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10010101172191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005050561095 + 5005050561096.

It is an arithmetic number, because the mean of its divisors is an integer number (5005050561096).

Almost surely, 2^{10010101122191} is an apocalyptic number.

10010101122191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010101122191 is an equidigital number, since it uses as much as digits as its factorization.

10010101122191 is an evil number, because the sum of its binary digits is even.

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

Adding to 10010101122191 its reverse (19122110101001), we get a palindrome (29132211223192).

The spelling of 10010101122191 in words is "ten trillion, ten billion, one hundred one million, one hundred twenty-two thousand, one hundred ninety-one".