12133333212 has 384 divisors, whose sum is σ = 39198394368. Its totient is φ = 2820096000.

The previous prime is 12133333087. The next prime is 12133333241. The reversal of 12133333212 is 21233333121.

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 127 ways as a sum of consecutive naturals, for example, 88564408 + ... + 88564544.

It is an arithmetic number, because the mean of its divisors is an integer number (102079152).

Almost surely, 2^12133333212 is an apocalyptic number.

12133333212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12133333212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19599197184).

12133333212 is an abundant number, since it is smaller than the sum of its proper divisors (27065061156).

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

12133333212 is a wasteful number, since it uses less digits than its factorization.

12133333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 12133333212 its reverse (21233333121), we get a palindrome (33366666333).

Subtracting 12133333212 from its reverse (21233333121), we obtain a palindrome (9099999909).

It can be divided in two parts, 121 and 33333212, that added together give a palindrome (33333333).

The spelling of 12133333212 in words is "twelve billion, one hundred thirty-three million, three hundred thirty-three thousand, two hundred twelve".