12011020012 has 24 divisors (see below), whose sum is σ = 22405644800. Its totient is φ = 5617409616.

The previous prime is 12011019971. The next prime is 12011020019. The reversal of 12011020012 is 21002011021.

It is not an unprimeable number, because it can be changed into a prime (12011020019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994248 + ... + 1006255.

Almost surely, 2^12011020012 is an apocalyptic number.

It is an amenable number.

12011020012 is a deficient number, since it is larger than the sum of its proper divisors (10394624788).

12011020012 is a wasteful number, since it uses less digits than its factorization.

12011020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000605 (or 2000603 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12011020012 its reverse (21002011021), we get a palindrome (33013031033).

The spelling of 12011020012 in words is "twelve billion, eleven million, twenty thousand, twelve".