12290212 has 36 divisors (see below), whose sum is σ = 24057040. Its totient is φ = 5488560.

The previous prime is 12290209. The next prime is 12290227. The reversal of 12290212 is 21209221.

It is a super-2 number, since 2×12290212² = 302098622009888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12290212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32239 + ... + 32617.

Almost surely, 2^12290212 is an apocalyptic number.

It is an amenable number.

12290212 is a deficient number, since it is larger than the sum of its proper divisors (11766828).

12290212 is a wasteful number, since it uses less digits than its factorization.

12290212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12290212 is about 3505.7398648502. The cubic root of 12290212 is about 230.7737770158.

Adding to 12290212 its reverse (21209221), we get a palindrome (33499433).

The spelling of 12290212 in words is "twelve million, two hundred ninety thousand, two hundred twelve".