121117015 has 8 divisors (see below), whose sum is σ = 145420848. Its totient is φ = 96840000.

The previous prime is 121116997. The next prime is 121117037. The reversal of 121117015 is 510711121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121117015 - 2¹¹ = 121114967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121116983 and 121117001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5140 + ... + 16390.

It is an arithmetic number, because the mean of its divisors is an integer number (18177606).

Almost surely, 2^121117015 is an apocalyptic number.

121117015 is a deficient number, since it is larger than the sum of its proper divisors (24303833).

121117015 is a wasteful number, since it uses less digits than its factorization.

121117015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13409.

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 121117015 is about 11005.3175783346. The cubic root of 121117015 is about 494.7681327419.

Adding to 121117015 its reverse (510711121), we get a palindrome (631828136).

The spelling of 121117015 in words is "one hundred twenty-one million, one hundred seventeen thousand, fifteen".