12112211022211 has 8 divisors (see below), whose sum is σ = 12157510855824. Its totient is φ = 12066985513440.

The previous prime is 12112211022143. The next prime is 12112211022221. The reversal of 12112211022211 is 11222011221121.

It is a happy number.

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 12112211022211 - 2¹⁹ = 12112210497923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112211022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18254665 + ... + 18906538.

It is an arithmetic number, because the mean of its divisors is an integer number (1519688856978).

Almost surely, 2^{12112211022211} is an apocalyptic number.

12112211022211 is a deficient number, since it is larger than the sum of its proper divisors (45299833613).

12112211022211 is an equidigital number, since it uses as much as digits as its factorization.

12112211022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37162421.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12112211022211 its reverse (11222011221121), we get a palindrome (23334222243332).

The spelling of 12112211022211 in words is "twelve trillion, one hundred twelve billion, two hundred eleven million, twenty-two thousand, two hundred eleven".