12012012210009 has 32 divisors (see below), whose sum is σ = 19333877161984. Its totient is φ = 6488108605440.

The previous prime is 12012012210007. The next prime is 12012012210047. The reversal of 12012012210009 is 90001221021021.

It is not a de Polignac number, because 12012012210009 - 2¹ = 12012012210007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12012012210007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214525864 + ... + 214581849.

It is an arithmetic number, because the mean of its divisors is an integer number (604183661312).

Almost surely, 2^{12012012210009} is an apocalyptic number.

It is an amenable number.

12012012210009 is a deficient number, since it is larger than the sum of its proper divisors (7321864951975).

12012012210009 is a wasteful number, since it uses less digits than its factorization.

12012012210009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429107797.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12012012210009 in words is "twelve trillion, twelve billion, twelve million, two hundred ten thousand, nine".