12011010001011 has 24 divisors (see below), whose sum is σ = 20288808334080. Its totient is φ = 6703819533936.

The previous prime is 12011010001007. The next prime is 12011010001031. The reversal of 12011010001011 is 11010001011021.

It is not a de Polignac number, because 12011010001011 - 2² = 12011010001007 is a prime.

It is a super-2 number, since 2×12011010001011² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12011010000984 and 12011010001002.

It is not an unprimeable number, because it can be changed into a prime (12011010001031) 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 23 ways as a sum of consecutive naturals, for example, 2216868831 + ... + 2216874248.

It is an arithmetic number, because the mean of its divisors is an integer number (845367013920).

Almost surely, 2^{12011010001011} is an apocalyptic number.

12011010001011 is a deficient number, since it is larger than the sum of its proper divisors (8277798333069).

12011010001011 is a wasteful number, since it uses less digits than its factorization.

12011010001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433743135 (or 4433743132 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 12011010001011 its reverse (11010001011021), we get a palindrome (23021011012032).

The spelling of 12011010001011 in words is "twelve trillion, eleven billion, ten million, one thousand, eleven".