12011021003212 has 192 divisors, whose sum is σ = 27280938617856. Its totient is φ = 4491397693440.

The previous prime is 12011021003197. The next prime is 12011021003221. The reversal of 12011021003212 is 21230012011021.

12011021003212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339343788 + ... + 339379180.

It is an arithmetic number, because the mean of its divisors is an integer number (142088221968).

Almost surely, 2^{12011021003212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011021003212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13640469308928).

12011021003212 is an abundant number, since it is smaller than the sum of its proper divisors (15269917614644).

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

12011021003212 is a wasteful number, since it uses less digits than its factorization.

12011021003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35856 (or 35854 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12011021003212 its reverse (21230012011021), we get a palindrome (33241033014233).

The spelling of 12011021003212 in words is "twelve trillion, eleven billion, twenty-one million, three thousand, two hundred twelve".