12011112021212 has 24 divisors (see below), whose sum is σ = 21212781928800. Its totient is φ = 5950319766336.

The previous prime is 12011112021179. The next prime is 12011112021247. The reversal of 12011112021212 is 21212021111021.

12011112021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12011112021212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19738418 + ... + 20337830.

It is an arithmetic number, because the mean of its divisors is an integer number (883865913700).

Almost surely, 2^{12011112021212} is an apocalyptic number.

It is an amenable number.

12011112021212 is a deficient number, since it is larger than the sum of its proper divisors (9201669907588).

12011112021212 is a wasteful number, since it uses less digits than its factorization.

12011112021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645485 (or 645483 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12011112021212 its reverse (21212021111021), we get a palindrome (33223133132233).

The spelling of 12011112021212 in words is "twelve trillion, eleven billion, one hundred twelve million, twenty-one thousand, two hundred twelve".