12011330211111 has 64 divisors (see below), whose sum is σ = 23353083801600. Its totient is φ = 5911249298400.

The previous prime is 12011330211043. The next prime is 12011330211119. The reversal of 12011330211111 is 11111203311021.

12011330211111 is a `hidden beast` number, since 1 + 2 + 0 + 11 + 330 + 211 + 111 = 666.

It is not a de Polignac number, because 12011330211111 - 2⁷ = 12011330210983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011330211119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151998805 + ... + 152077806.

It is an arithmetic number, because the mean of its divisors is an integer number (364891934400).

Almost surely, 2^{12011330211111} is an apocalyptic number.

12011330211111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011330211111 is a deficient number, since it is larger than the sum of its proper divisors (11341753590489).

12011330211111 is a wasteful number, since it uses less digits than its factorization.

12011330211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304076657 (or 304076651 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 12011330211111 its reverse (11111203311021), we get a palindrome (23122533522132).

The spelling of 12011330211111 in words is "twelve trillion, eleven billion, three hundred thirty million, two hundred eleven thousand, one hundred eleven".