12120100111211 has 4 divisors (see below), whose sum is σ = 12173026312800. Its totient is φ = 12067173909624.

The previous prime is 12120100111201. The next prime is 12120100111243. The reversal of 12120100111211 is 11211100102121.

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 12120100111211 - 2²⁶ = 12120033002347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120100111201) 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, 26463100451 + ... + 26463100908.

It is an arithmetic number, because the mean of its divisors is an integer number (3043256578200).

Almost surely, 2^{12120100111211} is an apocalyptic number.

12120100111211 is a deficient number, since it is larger than the sum of its proper divisors (52926201589).

12120100111211 is an equidigital number, since it uses as much as digits as its factorization.

12120100111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52926201588.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12120100111211 its reverse (11211100102121), we get a palindrome (23331200213332).

The spelling of 12120100111211 in words is "twelve trillion, one hundred twenty billion, one hundred million, one hundred eleven thousand, two hundred eleven".