121660112707 has 12 divisors (see below), whose sum is σ = 142821370560. Its totient is φ = 103323393936.

The previous prime is 121660112701. The next prime is 121660112711. The reversal of 121660112707 is 707211066121.

It is not a de Polignac number, because 121660112707 - 2³ = 121660112699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121660112701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11383923 + ... + 11394604.

It is an arithmetic number, because the mean of its divisors is an integer number (11901780880).

Almost surely, 2^121660112707 is an apocalyptic number.

121660112707 is a deficient number, since it is larger than the sum of its proper divisors (21161257853).

121660112707 is a wasteful number, since it uses less digits than its factorization.

121660112707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22778650 (or 22778643 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

Adding to 121660112707 its reverse (707211066121), we get a palindrome (828871178828).

The spelling of 121660112707 in words is "one hundred twenty-one billion, six hundred sixty million, one hundred twelve thousand, seven hundred seven".