12001022112012 has 24 divisors (see below), whose sum is σ = 28030871613696. Its totient is φ = 3996271177488.

The previous prime is 12001022111983. The next prime is 12001022112017. The reversal of 12001022112012 is 21021122010021.

It is a junction number, because it is equal to n+sod(n) for n = 12001022111982 and 12001022112000.

It is not an unprimeable number, because it can be changed into a prime (12001022112017) 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, 508678528 + ... + 508702119.

It is an arithmetic number, because the mean of its divisors is an integer number (1167952983904).

Almost surely, 2^{12001022112012} is an apocalyptic number.

12001022112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001022112012 is an abundant number, since it is smaller than the sum of its proper divisors (16029849501684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001022112012 is a wasteful number, since it uses less digits than its factorization.

12001022112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017381637 (or 1017381635 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12001022112012 its reverse (21021122010021), we get a palindrome (33022144122033).

The spelling of 12001022112012 in words is "twelve trillion, one billion, twenty-two million, one hundred twelve thousand, twelve".