12011112211012 has 48 divisors (see below), whose sum is σ = 22316976460800. Its totient is φ = 5644071338400.

The previous prime is 12011112210997. The next prime is 12011112211019. The reversal of 12011112211012 is 21011221111021.

It is not an unprimeable number, because it can be changed into a prime (12011112211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9610387 + ... + 10788037.

It is an arithmetic number, because the mean of its divisors is an integer number (464937009600).

Almost surely, 2^{12011112211012} is an apocalyptic number.

It is an amenable number.

12011112211012 is a deficient number, since it is larger than the sum of its proper divisors (10305864249788).

12011112211012 is a wasteful number, since it uses less digits than its factorization.

12011112211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179616 (or 1179614 counting only the distinct ones).

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

Adding to 12011112211012 its reverse (21011221111021), we get a palindrome (33022333322033).

The spelling of 12011112211012 in words is "twelve trillion, eleven billion, one hundred twelve million, two hundred eleven thousand, twelve".