12011221001012 has 12 divisors (see below), whose sum is σ = 21933534002016. Its totient is φ = 5744497000440.

The previous prime is 12011221000969. The next prime is 12011221001057. The reversal of 12011221001012 is 21010012211021.

12011221001012 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 2×12011221001012² (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 3 ways as a sum of consecutive naturals, for example, 65278374914 + ... + 65278375097.

It is an arithmetic number, because the mean of its divisors is an integer number (1827794500168).

Almost surely, 2^{12011221001012} is an apocalyptic number.

It is an amenable number.

12011221001012 is a deficient number, since it is larger than the sum of its proper divisors (9922313001004).

12011221001012 is a wasteful number, since it uses less digits than its factorization.

12011221001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130556750038 (or 130556750036 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011221001012 its reverse (21010012211021), we get a palindrome (33021233212033).

The spelling of 12011221001012 in words is "twelve trillion, eleven billion, two hundred twenty-one million, one thousand, twelve".