12213230 has 16 divisors (see below), whose sum is σ = 22940064. Its totient is φ = 4672800.

The previous prime is 12213221. The next prime is 12213241. The reversal of 12213230 is 3231221.

It is a happy number.

It is a Curzon number.

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, 26321 + ... + 26780.

It is an arithmetic number, because the mean of its divisors is an integer number (1433754).

Almost surely, 2^12213230 is an apocalyptic number.

12213230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12213230 is a deficient number, since it is larger than the sum of its proper divisors (10726834).

12213230 is a wasteful number, since it uses less digits than its factorization.

12213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53131.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12213230 is about 3494.7431951432. The cubic root of 12213230 is about 230.2909361759.

Adding to 12213230 its reverse (3231221), we get a palindrome (15444451).

Subtracting from 12213230 its reverse (3231221), we obtain a square (8982009 = 2997²).

The spelling of 12213230 in words is "twelve million, two hundred thirteen thousand, two hundred thirty".