12000211111212 has 12 divisors (see below), whose sum is σ = 28000492592856. Its totient is φ = 4000070370400.

The previous prime is 12000211111193. The next prime is 12000211111243. The reversal of 12000211111212 is 21211111200021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12000211111191 and 12000211111200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500008796289 + ... + 500008796312.

It is an arithmetic number, because the mean of its divisors is an integer number (2333374382738).

Almost surely, 2^{12000211111212} is an apocalyptic number.

12000211111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000211111212 is an abundant number, since it is smaller than the sum of its proper divisors (16000281481644).

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

12000211111212 is a wasteful number, since it uses less digits than its factorization.

12000211111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000017592608 (or 1000017592606 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12000211111212 its reverse (21211111200021), we get a palindrome (33211322311233).

The spelling of 12000211111212 in words is "twelve trillion, two hundred eleven million, one hundred eleven thousand, two hundred twelve".