12120200212 has 6 divisors (see below), whose sum is σ = 21210350378. Its totient is φ = 6060100104.

The previous prime is 12120200207. The next prime is 12120200233. The reversal of 12120200212 is 21200202121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10996877956 + 1123322256 = 104866^2 + 33516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12120200192 and 12120200201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515025023 + ... + 1515025030.

Almost surely, 2^12120200212 is an apocalyptic number.

It is an amenable number.

12120200212 is a deficient number, since it is larger than the sum of its proper divisors (9090150166).

12120200212 is a wasteful number, since it uses less digits than its factorization.

12120200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030050057 (or 3030050055 counting only the distinct ones).

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

Adding to 12120200212 its reverse (21200202121), we get a palindrome (33320402333).

The spelling of 12120200212 in words is "twelve billion, one hundred twenty million, two hundred thousand, two hundred twelve".