12213048 has 32 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 3856608.

The previous prime is 12213037. The next prime is 12213049. The reversal of 12213048 is 84031221.

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, 12936 + ... + 13847.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^12213048 is an apocalyptic number.

It is an amenable number.

12213048 is an abundant number, since it is smaller than the sum of its proper divisors (19927752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12213048 is a wasteful number, since it uses less digits than its factorization.

12213048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26811 (or 26807 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12213048 is about 3494.7171559369. The cubic root of 12213048 is about 230.2897922481.

Adding to 12213048 its reverse (84031221), we get a palindrome (96244269).

The spelling of 12213048 in words is "twelve million, two hundred thirteen thousand, forty-eight".