12022220021212 has 6 divisors (see below), whose sum is σ = 21038885037128. Its totient is φ = 6011110010604.

The previous prime is 12022220021143. The next prime is 12022220021213. The reversal of 12022220021212 is 21212002222021.

It is a self number, because there is not a number n which added to its sum of digits gives 12022220021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022220021213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502777502648 + ... + 1502777502655.

Almost surely, 2^{12022220021212} is an apocalyptic number.

It is an amenable number.

12022220021212 is a deficient number, since it is larger than the sum of its proper divisors (9016665015916).

12022220021212 is a wasteful number, since it uses less digits than its factorization.

12022220021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005555005307 (or 3005555005305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12022220021212 its reverse (21212002222021), we get a palindrome (33234222243233).

The spelling of 12022220021212 in words is "twelve trillion, twenty-two billion, two hundred twenty million, twenty-one thousand, two hundred twelve".