12112333212 has 48 divisors (see below), whose sum is σ = 32413751552. Its totient is φ = 3448431360.

The previous prime is 12112333171. The next prime is 12112333241. The reversal of 12112333212 is 21233321121.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230989 + ... + 278532.

Almost surely, 2^12112333212 is an apocalyptic number.

12112333212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12112333212 is an abundant number, since it is smaller than the sum of its proper divisors (20301418340).

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

12112333212 is a wasteful number, since it uses less digits than its factorization.

12112333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509818 (or 509816 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 12112333212 its reverse (21233321121), we get a palindrome (33345654333).

The spelling of 12112333212 in words is "twelve billion, one hundred twelve million, three hundred thirty-three thousand, two hundred twelve".