12011102102011 has 32 divisors (see below), whose sum is σ = 12516991119360. Its totient is φ = 11519041581600.

The previous prime is 12011102101987. The next prime is 12011102102053. The reversal of 12011102102011 is 11020120111021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12011102102011 - 2⁹ = 12011102101499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011102101982 and 12011102102000.

It is not an unprimeable number, because it can be changed into a prime (12011102102911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397558696 + ... + 397588906.

It is an arithmetic number, because the mean of its divisors is an integer number (391155972480).

Almost surely, 2^{12011102102011} is an apocalyptic number.

12011102102011 is a deficient number, since it is larger than the sum of its proper divisors (505889017349).

12011102102011 is a wasteful number, since it uses less digits than its factorization.

12011102102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31335.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12011102102011 its reverse (11020120111021), we get a palindrome (23031222213032).

The spelling of 12011102102011 in words is "twelve trillion, eleven billion, one hundred two million, one hundred two thousand, eleven".