12112003212 has 24 divisors (see below), whose sum is σ = 28862647296. Its totient is φ = 3951433488.

The previous prime is 12112003193. The next prime is 12112003213. The reversal of 12112003212 is 21230021121.

It is a junction number, because it is equal to n+sod(n) for n = 12112003191 and 12112003200.

It is not an unprimeable number, because it can be changed into a prime (12112003213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10737028 + ... + 10738155.

It is an arithmetic number, because the mean of its divisors is an integer number (1202610304).

Almost surely, 2^12112003212 is an apocalyptic number.

12112003212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12112003212 is an abundant number, since it is smaller than the sum of its proper divisors (16750644084).

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

12112003212 is a wasteful number, since it uses less digits than its factorization.

12112003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21475237 (or 21475235 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12112003212 its reverse (21230021121), we get a palindrome (33342024333).

The spelling of 12112003212 in words is "twelve billion, one hundred twelve million, three thousand, two hundred twelve".