12012122120985 has 48 divisors (see below), whose sum is σ = 23831550737280. Its totient is φ = 5482923022080.

The previous prime is 12012122120983. The next prime is 12012122120989. The reversal of 12012122120985 is 58902122121021.

12012122120985 is a `hidden beast` number, since 1 + 201 + 21 + 221 + 209 + 8 + 5 = 666.

It is not a de Polignac number, because 12012122120985 - 2¹ = 12012122120983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012122120981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28725436 + ... + 29140605.

It is an arithmetic number, because the mean of its divisors is an integer number (496490640360).

Almost surely, 2^{12012122120985} is an apocalyptic number.

12012122120985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12012122120985 is a deficient number, since it is larger than the sum of its proper divisors (11819428616295).

12012122120985 is a wasteful number, since it uses less digits than its factorization.

12012122120985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57866718 (or 57866715 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

Adding to 12012122120985 its sum of digits (36), we get a palindrome (12012122121021).

The spelling of 12012122120985 in words is "twelve trillion, twelve billion, one hundred twenty-two million, one hundred twenty thousand, nine hundred eighty-five".