12366511212 has 288 divisors, whose sum is σ = 35109752832. Its totient is φ = 3370752000.

The previous prime is 12366511211. The next prime is 12366511231. The reversal of 12366511212 is 21211566321.

It is a self number, because there is not a number n which added to its sum of digits gives 12366511212.

It is not an unprimeable number, because it can be changed into a prime (12366511211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64746037 + ... + 64746227.

It is an arithmetic number, because the mean of its divisors is an integer number (121908864).

Almost surely, 2^12366511212 is an apocalyptic number.

12366511212 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 12366511212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17554876416).

12366511212 is an abundant number, since it is smaller than the sum of its proper divisors (22743241620).

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

12366511212 is a wasteful number, since it uses less digits than its factorization.

12366511212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 328 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The spelling of 12366511212 in words is "twelve billion, three hundred sixty-six million, five hundred eleven thousand, two hundred twelve".