121560317722771 has 4 divisors (see below), whose sum is σ = 121614609961600. Its totient is φ = 121506025483944.

The previous prime is 121560317722721. The next prime is 121560317722813. The reversal of 121560317722771 is 177227713065121.

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 121560317722771 - 2⁷ = 121560317722643 is a prime.

It is a super-2 number, since 2×121560317722771² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121560317722721) 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, 27146116056 + ... + 27146120533.

It is an arithmetic number, because the mean of its divisors is an integer number (30403652490400).

Almost surely, 2^{121560317722771} is an apocalyptic number.

121560317722771 is a deficient number, since it is larger than the sum of its proper divisors (54292238829).

121560317722771 is an equidigital number, since it uses as much as digits as its factorization.

121560317722771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54292238828.

The product of its (nonzero) digits is 1728720, while the sum is 52.

The spelling of 121560317722771 in words is "one hundred twenty-one trillion, five hundred sixty billion, three hundred seventeen million, seven hundred twenty-two thousand, seven hundred seventy-one".