12012200000212 has 12 divisors (see below), whose sum is σ = 21022212656116. Its totient is φ = 6005853527040.

The previous prime is 12012200000159. The next prime is 12012200000309. The reversal of 12012200000212 is 21200000221021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7560927081796 + 4451272918416 = 2749714^2 + 2109804^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12012200000192 and 12012200000201.

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, 61508589 + ... + 61703572.

Almost surely, 2^{12012200000212} is an apocalyptic number.

It is an amenable number.

12012200000212 is a deficient number, since it is larger than the sum of its proper divisors (9010012655904).

12012200000212 is a wasteful number, since it uses less digits than its factorization.

12012200000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123236538 (or 123236536 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012200000212 its reverse (21200000221021), we get a palindrome (33212200221233).

The spelling of 12012200000212 in words is "twelve trillion, twelve billion, two hundred million, two hundred twelve", and thus it is an aban number.