121193113217 has 24 divisors (see below), whose sum is σ = 135779444640. Its totient is φ = 108060867200.

The previous prime is 121193113213. The next prime is 121193113229. The reversal of 121193113217 is 712311391121.

It is not a de Polignac number, because 121193113217 - 2² = 121193113213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121193113213) 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 in 23 ways as a sum of consecutive naturals, for example, 3143417 + ... + 3181737.

It is an arithmetic number, because the mean of its divisors is an integer number (5657476860).

Almost surely, 2^121193113217 is an apocalyptic number.

It is an amenable number.

121193113217 is a deficient number, since it is larger than the sum of its proper divisors (14586331423).

121193113217 is a wasteful number, since it uses less digits than its factorization.

121193113217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38845 (or 38834 counting only the distinct ones).

The product of its digits is 2268, while the sum is 32.

The spelling of 121193113217 in words is "one hundred twenty-one billion, one hundred ninety-three million, one hundred thirteen thousand, two hundred seventeen".