12001001212011 has 16 divisors (see below), whose sum is σ = 18287382656000. Its totient is φ = 6857661460608.

The previous prime is 12001001211911. The next prime is 12001001212043. The reversal of 12001001212011 is 11021210010021.

It is not a de Polignac number, because 12001001212011 - 2⁷ = 12001001211883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001001212061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609150 + ... + 4936908.

It is an arithmetic number, because the mean of its divisors is an integer number (1142961416000).

Almost surely, 2^{12001001212011} is an apocalyptic number.

12001001212011 is a deficient number, since it is larger than the sum of its proper divisors (6286381443989).

12001001212011 is a wasteful number, since it uses less digits than its factorization.

12001001212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459818.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12001001212011 its reverse (11021210010021), we get a palindrome (23022211222032).

The spelling of 12001001212011 in words is "twelve trillion, one billion, one million, two hundred twelve thousand, eleven".