12112222022011 has 4 divisors (see below), whose sum is σ = 12116323691752. Its totient is φ = 12108120352272.

The previous prime is 12112222021951. The next prime is 12112222022071. The reversal of 12112222022011 is 11022022221121.

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

It is an interprime number because it is at equal distance from previous prime (12112222021951) and next prime (12112222022071).

It is a cyclic number.

It is not a de Polignac number, because 12112222022011 - 2⁷ = 12112222021883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112222022011.

It is not an unprimeable number, because it can be changed into a prime (12112222022071) 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, 2050830441 + ... + 2050836346.

It is an arithmetic number, because the mean of its divisors is an integer number (3029080922938).

Almost surely, 2^{12112222022011} is an apocalyptic number.

12112222022011 is a deficient number, since it is larger than the sum of its proper divisors (4101669741).

12112222022011 is an equidigital number, since it uses as much as digits as its factorization.

12112222022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101669740.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12112222022011 its reverse (11022022221121), we get a palindrome (23134244243132).

The spelling of 12112222022011 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-two million, twenty-two thousand, eleven".