12000212221012 has 12 divisors (see below), whose sum is σ = 21001134092596. Its totient is φ = 5999888194560.

The previous prime is 12000212221003. The next prime is 12000212221117. The reversal of 12000212221012 is 21012221200021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9541945712016 + 2458266508996 = 3089004^2 + 1567886^2 .

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, 54355053 + ... + 54575380.

Almost surely, 2^{12000212221012} is an apocalyptic number.

It is an amenable number.

12000212221012 is a deficient number, since it is larger than the sum of its proper divisors (9000921871584).

12000212221012 is a wasteful number, since it uses less digits than its factorization.

12000212221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108957978 (or 108957976 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12000212221012 its reverse (21012221200021), we get a palindrome (33012433421033).

The spelling of 12000212221012 in words is "twelve trillion, two hundred twelve million, two hundred twenty-one thousand, twelve".