121600507012 has 12 divisors (see below), whose sum is σ = 212828674716. Its totient is φ = 60792314240.

The previous prime is 121600507009. The next prime is 121600507013. The reversal of 121600507012 is 210705006121.

It can be written as a sum of positive squares in 2 ways, for example, as 29290268736 + 92310238276 = 171144^2 + 303826^2 .

It is a super-2 number, since 2×121600507012² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121600507013) 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, 1950289 + ... + 2011672.

It is an arithmetic number, because the mean of its divisors is an integer number (17735722893).

Almost surely, 2^121600507012 is an apocalyptic number.

It is an amenable number.

121600507012 is a deficient number, since it is larger than the sum of its proper divisors (91228167704).

121600507012 is a wasteful number, since it uses less digits than its factorization.

121600507012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969638 (or 3969636 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The spelling of 121600507012 in words is "one hundred twenty-one billion, six hundred million, five hundred seven thousand, twelve".