12001001200011 has 6 divisors (see below), whose sum is σ = 17334779511140. Its totient is φ = 8000667466668.

The previous prime is 12001001199991. The next prime is 12001001200061. The reversal of 12001001200011 is 11000210010021.

It is a happy number.

It is not a de Polignac number, because 12001001200011 - 2⁶ = 12001001199947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1333444577779 = 12001001200011 / (1 + 2 + 0 + 0 + 1 + 0 + 0 + 1 + 2 + 0 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001001199966 and 12001001200002.

It is not an unprimeable number, because it can be changed into a prime (12001001200061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666722288881 + ... + 666722288898.

Almost surely, 2^{12001001200011} is an apocalyptic number.

12001001200011 is a deficient number, since it is larger than the sum of its proper divisors (5333778311129).

12001001200011 is a wasteful number, since it uses less digits than its factorization.

12001001200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333444577785 (or 1333444577782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12001001200011 its reverse (11000210010021), we get a palindrome (23001211210032).

The spelling of 12001001200011 in words is "twelve trillion, one billion, one million, two hundred thousand, eleven".