12011211210211 has 8 divisors (see below), whose sum is σ = 12533507610624. Its totient is φ = 11488920628680.

The previous prime is 12011211210203. The next prime is 12011211210217. The reversal of 12011211210211 is 11201211211021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12011211210211 - 2³ = 12011211210203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011211210217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3061780 + ... + 5779006.

It is an arithmetic number, because the mean of its divisors is an integer number (1566688451328).

Almost surely, 2^{12011211210211} is an apocalyptic number.

12011211210211 is a deficient number, since it is larger than the sum of its proper divisors (522296400413).

12011211210211 is a wasteful number, since it uses less digits than its factorization.

12011211210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909441.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12011211210211 its reverse (11201211211021), we get a palindrome (23212422421232).

The spelling of 12011211210211 in words is "twelve trillion, eleven billion, two hundred eleven million, two hundred ten thousand, two hundred eleven".