12112002222012 has 144 divisors (see below), whose sum is σ = 38253963331584. Its totient is φ = 3139150032000.

The previous prime is 12112002222011. The next prime is 12112002222037. The reversal of 12112002222012 is 21022220021121.

It is a happy number.

12112002222012 is a `hidden beast` number, since 1 + 211 + 200 + 22 + 220 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112002222011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3461164 + ... + 6016947.

It is an arithmetic number, because the mean of its divisors is an integer number (265652523136).

Almost surely, 2^{12112002222012} is an apocalyptic number.

12112002222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12112002222012 is an abundant number, since it is smaller than the sum of its proper divisors (26141961109572).

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

12112002222012 is a wasteful number, since it uses less digits than its factorization.

12112002222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478600 (or 9478595 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12112002222012 its reverse (21022220021121), we get a palindrome (33134222243133).

The spelling of 12112002222012 in words is "twelve trillion, one hundred twelve billion, two million, two hundred twenty-two thousand, twelve".