12112010111211 has 4 divisors (see below), whose sum is σ = 16149346814952. Its totient is φ = 8074673407472.

The previous prime is 12112010111209. The next prime is 12112010111219. The reversal of 12112010111211 is 11211101021121.

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 12112010111211 - 2¹ = 12112010111209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112010111219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018668351866 + ... + 2018668351871.

It is an arithmetic number, because the mean of its divisors is an integer number (4037336703738).

Almost surely, 2^{12112010111211} is an apocalyptic number.

12112010111211 is a deficient number, since it is larger than the sum of its proper divisors (4037336703741).

12112010111211 is an equidigital number, since it uses as much as digits as its factorization.

12112010111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037336703740.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12112010111211 its reverse (11211101021121), we get a palindrome (23323111132332).

The spelling of 12112010111211 in words is "twelve trillion, one hundred twelve billion, ten million, one hundred eleven thousand, two hundred eleven".