12111334212 has 48 divisors (see below), whose sum is σ = 29020723200. Its totient is φ = 3929845920.

The previous prime is 12111334201. The next prime is 12111334219. The reversal of 12111334212 is 21243311121.

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

It is not an unprimeable number, because it can be changed into a prime (12111334219) 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, 22662 + ... + 157277.

It is an arithmetic number, because the mean of its divisors is an integer number (604598400).

Almost surely, 2^12111334212 is an apocalyptic number.

12111334212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12111334212 is an abundant number, since it is smaller than the sum of its proper divisors (16909388988).

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

12111334212 is a wasteful number, since it uses less digits than its factorization.

12111334212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180096 (or 180094 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 12111334212 its reverse (21243311121), we get a palindrome (33354645333).

The spelling of 12111334212 in words is "twelve billion, one hundred eleven million, three hundred thirty-four thousand, two hundred twelve".