12213430 has 16 divisors (see below), whose sum is σ = 22313520. Its totient is φ = 4812192.

The previous prime is 12213403. The next prime is 12213469. The reversal of 12213430 is 3431221.

It is a happy 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, 8445 + ... + 9784.

It is an arithmetic number, because the mean of its divisors is an integer number (1394595).

Almost surely, 2^12213430 is an apocalyptic number.

12213430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12213430 is a deficient number, since it is larger than the sum of its proper divisors (10100090).

12213430 is a wasteful number, since it uses less digits than its factorization.

12213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18303.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12213430 is about 3494.7718094319. The cubic root of 12213430 is about 230.2921932262.

Adding to 12213430 its reverse (3431221), we get a palindrome (15644651).

The spelling of 12213430 in words is "twelve million, two hundred thirteen thousand, four hundred thirty".