12001991210036 has 24 divisors (see below), whose sum is σ = 21500463688704. Its totient is φ = 5859112311360.

The previous prime is 12001991210023. The next prime is 12001991210051. The reversal of 12001991210036 is 63001219910021.

It is a happy number.

12001991210036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12001991209978 and 12001991210005.

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, 13405940 + ... + 14273163.

It is an arithmetic number, because the mean of its divisors is an integer number (895852653696).

Almost surely, 2^{12001991210036} is an apocalyptic number.

It is an amenable number.

12001991210036 is a deficient number, since it is larger than the sum of its proper divisors (9498472478668).

12001991210036 is a wasteful number, since it uses less digits than its factorization.

12001991210036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27681671 (or 27681669 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 12001991210036 in words is "twelve trillion, one billion, nine hundred ninety-one million, two hundred ten thousand, thirty-six".