12120203230211 has 4 divisors (see below), whose sum is σ = 12758108663400. Its totient is φ = 11482297797024.

The previous prime is 12120203230207. The next prime is 12120203230241. The reversal of 12120203230211 is 11203230202121.

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 12120203230211 - 2² = 12120203230207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120203230241) 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, 318952716566 + ... + 318952716603.

It is an arithmetic number, because the mean of its divisors is an integer number (3189527165850).

Almost surely, 2^{12120203230211} is an apocalyptic number.

12120203230211 is a deficient number, since it is larger than the sum of its proper divisors (637905433189).

12120203230211 is an equidigital number, since it uses as much as digits as its factorization.

12120203230211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637905433188.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12120203230211 its reverse (11203230202121), we get a palindrome (23323433432332).

The spelling of 12120203230211 in words is "twelve trillion, one hundred twenty billion, two hundred three million, two hundred thirty thousand, two hundred eleven".