12112212211112 has 32 divisors (see below), whose sum is σ = 24457913495400. Its totient is φ = 5590123352064.

The previous prime is 12112212211103. The next prime is 12112212211153. The reversal of 12112212211112 is 21111221221121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11532503570116 + 579708640996 = 3395954^2 + 761386^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3286964 + ... + 5918492.

Almost surely, 2^{12112212211112} is an apocalyptic number.

It is an amenable number.

12112212211112 is an abundant number, since it is smaller than the sum of its proper divisors (12345701284288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112212211112 is a wasteful number, since it uses less digits than its factorization.

12112212211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675805 (or 2675801 counting only the distinct ones).

The product of its digits is 64, while the sum is 20.

Adding to 12112212211112 its reverse (21111221221121), we get a palindrome (33223433432233).

The spelling of 12112212211112 in words is "twelve trillion, one hundred twelve billion, two hundred twelve million, two hundred eleven thousand, one hundred twelve".