12213044 has 24 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 5925536.

The previous prime is 12213037. The next prime is 12213049. The reversal of 12213044 is 44031221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31202 + ... + 31590.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^12213044 is an apocalyptic number.

It is an amenable number.

12213044 is a deficient number, since it is larger than the sum of its proper divisors (9801676).

12213044 is a wasteful number, since it uses less digits than its factorization.

12213044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12213044 is about 3494.7165836445. The cubic root of 12213044 is about 230.2897671067.

Adding to 12213044 its reverse (44031221), we get a palindrome (56244265).

The spelling of 12213044 in words is "twelve million, two hundred thirteen thousand, forty-four".