121106871 has 12 divisors (see below), whose sum is σ = 180964680. Its totient is φ = 77953680.

The previous prime is 121106857. The next prime is 121106911. The reversal of 121106871 is 178601121.

It is not a de Polignac number, because 121106871 - 2¹⁵ = 121074103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121106831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231745 + ... + 232266.

It is an arithmetic number, because the mean of its divisors is an integer number (15080390).

Almost surely, 2^121106871 is an apocalyptic number.

121106871 is a deficient number, since it is larger than the sum of its proper divisors (59857809).

121106871 is a wasteful number, since it uses less digits than its factorization.

121106871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464046 (or 464043 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 121106871 is about 11004.8567005663. The cubic root of 121106871 is about 494.7543194665.

Adding to 121106871 its reverse (178601121), we get a palindrome (299707992).

It can be divided in two parts, 12110 and 6871, that added together give a palindrome (18981).

The spelling of 121106871 in words is "one hundred twenty-one million, one hundred six thousand, eight hundred seventy-one".