10211122100171 has 2 divisors, whose sum is σ = 10211122100172. Its totient is φ = 10211122100170.

The previous prime is 10211122100089. The next prime is 10211122100173. The reversal of 10211122100171 is 17100122111201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10211122100171 - 2²² = 10211117905867 is a prime.

It is a super-2 number, since 2×10211122100171² (a number of 27 digits) contains 22 as substring.

Together with 10211122100173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10211122100173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105561050085 + 5105561050086.

It is an arithmetic number, because the mean of its divisors is an integer number (5105561050086).

Almost surely, 2^{10211122100171} is an apocalyptic number.

10211122100171 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211122100171 is an equidigital number, since it uses as much as digits as its factorization.

10211122100171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 10211122100171 its reverse (17100122111201), we get a palindrome (27311244211372).

The spelling of 10211122100171 in words is "ten trillion, two hundred eleven billion, one hundred twenty-two million, one hundred thousand, one hundred seventy-one".