121116859 has 4 divisors (see below), whose sum is σ = 121216480. Its totient is φ = 121017240.

The previous prime is 121116839. The next prime is 121116871. The reversal of 121116859 is 958611121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121116859 - 2¹³ = 121108667 is a prime.

It is a super-3 number, since 3×121116859³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121116839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47964 + ... + 50425.

It is an arithmetic number, because the mean of its divisors is an integer number (30304120).

Almost surely, 2^121116859 is an apocalyptic number.

121116859 is a deficient number, since it is larger than the sum of its proper divisors (99621).

121116859 is an equidigital number, since it uses as much as digits as its factorization.

121116859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99620.

The product of its digits is 4320, while the sum is 34.

The square root of 121116859 is about 11005.3104908494. The cubic root of 121116859 is about 494.7679203196.

The spelling of 121116859 in words is "one hundred twenty-one million, one hundred sixteen thousand, eight hundred fifty-nine".