12001020112012 has 12 divisors (see below), whose sum is σ = 21029095715320. Its totient is φ = 5992707050496.

The previous prime is 12001020111943. The next prime is 12001020112057. The reversal of 12001020112012 is 21021102010021.

It is a junction number, because it is equal to n+sod(n) for n = 12001020111983 and 12001020112001.

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, 1950747918 + ... + 1950754069.

Almost surely, 2^{12001020112012} is an apocalyptic number.

It is an amenable number.

12001020112012 is a deficient number, since it is larger than the sum of its proper divisors (9028075603308).

12001020112012 is a wasteful number, since it uses less digits than its factorization.

12001020112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901502760 (or 3901502758 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001020112012 its reverse (21021102010021), we get a palindrome (33022122122033).

The spelling of 12001020112012 in words is "twelve trillion, one billion, twenty million, one hundred twelve thousand, twelve".