12245524340121 has 40 divisors (see below), whose sum is σ = 19255951519200. Its totient is φ = 7733822120640.

The previous prime is 12245524340113. The next prime is 12245524340123. The reversal of 12245524340121 is 12104342554221.

12245524340121 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 5 + 5 + 243 + 401 + 2 + 1 = 666.

It is not a de Polignac number, because 12245524340121 - 2³ = 12245524340113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12245524340123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85387486 + ... + 85530776.

It is an arithmetic number, because the mean of its divisors is an integer number (481398787980).

Almost surely, 2^{12245524340121} is an apocalyptic number.

It is an amenable number.

12245524340121 is a deficient number, since it is larger than the sum of its proper divisors (7010427179079).

12245524340121 is a wasteful number, since it uses less digits than its factorization.

12245524340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198851 (or 198842 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 12245524340121 its reverse (12104342554221), we get a palindrome (24349866894342).

The spelling of 12245524340121 in words is "twelve trillion, two hundred forty-five billion, five hundred twenty-four million, three hundred forty thousand, one hundred twenty-one".