12001201012 has 6 divisors (see below), whose sum is σ = 21002101778. Its totient is φ = 6000600504.

The previous prime is 12001201007. The next prime is 12001201019. The reversal of 12001201012 is 21010210021.

It can be written as a sum of positive squares in only one way, i.e., 10632496996 + 1368704016 = 103114^2 + 36996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12001201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001201019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500150123 + ... + 1500150130.

Almost surely, 2^12001201012 is an apocalyptic number.

It is an amenable number.

12001201012 is a deficient number, since it is larger than the sum of its proper divisors (9000900766).

12001201012 is a wasteful number, since it uses less digits than its factorization.

12001201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000300257 (or 3000300255 counting only the distinct ones).

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

Adding to 12001201012 its reverse (21010210021), we get a palindrome (33011411033).

Subtracting 12001201012 from its reverse (21010210021), we obtain a palindrome (9009009009).

The spelling of 12001201012 in words is "twelve billion, one million, two hundred one thousand, twelve".