12216254 has 8 divisors (see below), whose sum is σ = 18391368. Its totient is φ = 6085800.

The previous prime is 12216247. The next prime is 12216283. The reversal of 12216254 is 45261221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10472 + ... + 11579.

It is an arithmetic number, because the mean of its divisors is an integer number (2298921).

Almost surely, 2^12216254 is an apocalyptic number.

12216254 is a deficient number, since it is larger than the sum of its proper divisors (6175114).

12216254 is a wasteful number, since it uses less digits than its factorization.

12216254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22330.

The product of its digits is 960, while the sum is 23.

The square root of 12216254 is about 3495.1758181814. The cubic root of 12216254 is about 230.3099413127.

Adding to 12216254 its reverse (45261221), we get a palindrome (57477475).

The spelling of 12216254 in words is "twelve million, two hundred sixteen thousand, two hundred fifty-four".