12212213212 has 6 divisors (see below), whose sum is σ = 21371373128. Its totient is φ = 6106106604.

The previous prime is 12212213207. The next prime is 12212213227. The reversal of 12212213212 is 21231221221.

It is a self number, because there is not a number n which added to its sum of digits gives 12212213212.

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, 1526526648 + ... + 1526526655.

Almost surely, 2^12212213212 is an apocalyptic number.

It is an amenable number.

12212213212 is a deficient number, since it is larger than the sum of its proper divisors (9159159916).

12212213212 is a wasteful number, since it uses less digits than its factorization.

12212213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053053307 (or 3053053305 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

Adding to 12212213212 its reverse (21231221221), we get a palindrome (33443434433).

The spelling of 12212213212 in words is "twelve billion, two hundred twelve million, two hundred thirteen thousand, two hundred twelve".