12011020020111 has 16 divisors (see below), whose sum is σ = 18302592729600. Its totient is φ = 6863407749408.

The previous prime is 12011020020107. The next prime is 12011020020121. The reversal of 12011020020111 is 11102002011021.

12011020020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011020020111 - 2² = 12011020020107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011020020121) 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, 3663505 + ... + 6119093.

It is an arithmetic number, because the mean of its divisors is an integer number (1143912045600).

Almost surely, 2^{12011020020111} is an apocalyptic number.

12011020020111 is a deficient number, since it is larger than the sum of its proper divisors (6291572709489).

12011020020111 is a wasteful number, since it uses less digits than its factorization.

12011020020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688518.

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

Adding to 12011020020111 its reverse (11102002011021), we get a palindrome (23113022031132).

The spelling of 12011020020111 in words is "twelve trillion, eleven billion, twenty million, twenty thousand, one hundred eleven".