12011333203211 has 12 divisors (see below), whose sum is σ = 12446303747592. Its totient is φ = 11591085463104.

The previous prime is 12011333203189. The next prime is 12011333203213. The reversal of 12011333203211 is 11230233311021.

It is a de Polignac number, because none of the positive numbers 2^k-12011333203211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011333203213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2124101 + ... + 5341766.

It is an arithmetic number, because the mean of its divisors is an integer number (1037191978966).

Almost surely, 2^{12011333203211} is an apocalyptic number.

12011333203211 is a deficient number, since it is larger than the sum of its proper divisors (434970544381).

12011333203211 is an equidigital number, since it uses as much as digits as its factorization.

12011333203211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7467838 (or 7467809 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12011333203211 its reverse (11230233311021), we get a palindrome (23241566514232).

The spelling of 12011333203211 in words is "twelve trillion, eleven billion, three hundred thirty-three million, two hundred three thousand, two hundred eleven".