121102171 has 2 divisors, whose sum is σ = 121102172. Its totient is φ = 121102170.

The previous prime is 121102159. The next prime is 121102243. The reversal of 121102171 is 171201121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121102171 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551085 + 60551086.

It is an arithmetic number, because the mean of its divisors is an integer number (60551086).

Almost surely, 2^121102171 is an apocalyptic number.

121102171 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102171 is an equidigital number, since it uses as much as digits as its factorization.

121102171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 121102171 is about 11004.6431564136. The cubic root of 121102171 is about 494.7479191267.

Adding to 121102171 its reverse (171201121), we get a palindrome (292303292).

The spelling of 121102171 in words is "one hundred twenty-one million, one hundred two thousand, one hundred seventy-one".