12213204 has 24 divisors (see below), whose sum is σ = 29161440. Its totient is φ = 3976224.

The previous prime is 12213199. The next prime is 12213221. The reversal of 12213204 is 40231221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11319 + ... + 12350.

It is an arithmetic number, because the mean of its divisors is an integer number (1215060).

Almost surely, 2^12213204 is an apocalyptic number.

It is an amenable number.

12213204 is an abundant number, since it is smaller than the sum of its proper divisors (16948236).

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

12213204 is a wasteful number, since it uses less digits than its factorization.

12213204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23719 (or 23717 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12213204 is about 3494.7394752685. The cubic root of 12213204 is about 230.2907727583.

Adding to 12213204 its reverse (40231221), we get a palindrome (52444425).

The spelling of 12213204 in words is "twelve million, two hundred thirteen thousand, two hundred four".