12112222071 has 16 divisors (see below), whose sum is σ = 16674560000. Its totient is φ = 7812473760.

The previous prime is 12112222051. The next prime is 12112222097. The reversal of 12112222071 is 17022221121.

It is not a de Polignac number, because 12112222071 - 2⁵ = 12112222039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112222021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451881 + ... + 477933.

It is an arithmetic number, because the mean of its divisors is an integer number (1042160000).

Almost surely, 2^12112222071 is an apocalyptic number.

12112222071 is a deficient number, since it is larger than the sum of its proper divisors (4562337929).

12112222071 is a wasteful number, since it uses less digits than its factorization.

12112222071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31086.

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 12112222071 its reverse (17022221121), we get a palindrome (29134443192).

The spelling of 12112222071 in words is "twelve billion, one hundred twelve million, two hundred twenty-two thousand, seventy-one".