121016171 has 2 divisors, whose sum is σ = 121016172. Its totient is φ = 121016170.

The previous prime is 121016167. The next prime is 121016213. The reversal of 121016171 is 171610121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121016171 - 2² = 121016167 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121013171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60508085 + 60508086.

It is an arithmetic number, because the mean of its divisors is an integer number (60508086).

Almost surely, 2^121016171 is an apocalyptic number.

121016171 is a deficient number, since it is larger than the sum of its proper divisors (1).

121016171 is an equidigital number, since it uses as much as digits as its factorization.

121016171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 121016171 is about 11000.7350208975. The cubic root of 121016171 is about 494.6307772773.

Adding to 121016171 its reverse (171610121), we get a palindrome (292626292).

The spelling of 121016171 in words is "one hundred twenty-one million, sixteen thousand, one hundred seventy-one".