12001333212 has 54 divisors (see below), whose sum is σ = 33345314184. Its totient is φ = 3636766320.

The previous prime is 12001333207. The next prime is 12001333237. The reversal of 12001333212 is 21233310021.

12001333212 is a `hidden beast` number, since 120 + 0 + 1 + 333 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1373208 + ... + 1381919.

Almost surely, 2^12001333212 is an apocalyptic number.

12001333212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001333212 is an abundant number, since it is smaller than the sum of its proper divisors (21343980972).

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

12001333212 is a wasteful number, since it uses less digits than its factorization.

12001333212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755159 (or 2755143 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12001333212 its reverse (21233310021), we get a palindrome (33234643233).

The spelling of 12001333212 in words is "twelve billion, one million, three hundred thirty-three thousand, two hundred twelve".