12022012 has 6 divisors (see below), whose sum is σ = 21038528. Its totient is φ = 6011004.

The previous prime is 12022007. The next prime is 12022013. The reversal of 12022012 is 21022021.

It is a self number, because there is not a number n which added to its sum of digits gives 12022012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502748 + ... + 1502755.

Almost surely, 2^12022012 is an apocalyptic number.

It is an amenable number.

12022012 is a deficient number, since it is larger than the sum of its proper divisors (9016516).

12022012 is a wasteful number, since it uses less digits than its factorization.

12022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005507 (or 3005505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12022012 is about 3467.2773180119. The cubic root of 12022012 is about 229.0827488370.

Adding to 12022012 its reverse (21022021), we get a palindrome (33044033).

Subtracting 12022012 from its reverse (21022021), we obtain a palindrome (9000009).

The spelling of 12022012 in words is "twelve million, twenty-two thousand, twelve".