12212330212 has 6 divisors (see below), whose sum is σ = 21371577878. Its totient is φ = 6106165104.

The previous prime is 12212330203. The next prime is 12212330227. The reversal of 12212330212 is 21203321221.

It can be written as a sum of positive squares in only one way, i.e., 10639097316 + 1573232896 = 103146^2 + 39664^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12212330212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526541273 + ... + 1526541280.

Almost surely, 2^12212330212 is an apocalyptic number.

It is an amenable number.

12212330212 is a deficient number, since it is larger than the sum of its proper divisors (9159247666).

12212330212 is a wasteful number, since it uses less digits than its factorization.

12212330212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053082557 (or 3053082555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12212330212 its reverse (21203321221), we get a palindrome (33415651433).

The spelling of 12212330212 in words is "twelve billion, two hundred twelve million, three hundred thirty thousand, two hundred twelve".