12031212333211 has 4 divisors (see below), whose sum is σ = 12258216339552. Its totient is φ = 11804208326872.

The previous prime is 12031212333187. The next prime is 12031212333281. The reversal of 12031212333211 is 11233321213021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12031212333211 - 2⁷ = 12031212333083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031212333281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113502003091 + ... + 113502003196.

It is an arithmetic number, because the mean of its divisors is an integer number (3064554084888).

Almost surely, 2^{12031212333211} is an apocalyptic number.

12031212333211 is a deficient number, since it is larger than the sum of its proper divisors (227004006341).

12031212333211 is an equidigital number, since it uses as much as digits as its factorization.

12031212333211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227004006340.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12031212333211 its reverse (11233321213021), we get a palindrome (23264533546232).

The spelling of 12031212333211 in words is "twelve trillion, thirty-one billion, two hundred twelve million, three hundred thirty-three thousand, two hundred eleven".