10210111220191 has 2 divisors, whose sum is σ = 10210111220192. Its totient is φ = 10210111220190.

The previous prime is 10210111220159. The next prime is 10210111220207. The reversal of 10210111220191 is 19102211101201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10210111220191 - 2⁵ = 10210111220159 is a prime.

It is a super-2 number, since 2×10210111220191² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10210111220591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105055610095 + 5105055610096.

It is an arithmetic number, because the mean of its divisors is an integer number (5105055610096).

Almost surely, 2^{10210111220191} is an apocalyptic number.

10210111220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10210111220191 is an equidigital number, since it uses as much as digits as its factorization.

10210111220191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

Adding to 10210111220191 its reverse (19102211101201), we get a palindrome (29312322321392).

The spelling of 10210111220191 in words is "ten trillion, two hundred ten billion, one hundred eleven million, two hundred twenty thousand, one hundred ninety-one".