12421214 has 8 divisors (see below), whose sum is σ = 20065080. Its totient is φ = 5732856.

The previous prime is 12421187. The next prime is 12421217. The reversal of 12421214 is 41212421.

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

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12421192 and 12421201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421217) 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 3 ways as a sum of consecutive naturals, for example, 238844 + ... + 238895.

It is an arithmetic number, because the mean of its divisors is an integer number (2508135).

Almost surely, 2^12421214 is an apocalyptic number.

12421214 is a deficient number, since it is larger than the sum of its proper divisors (7643866).

12421214 is a wasteful number, since it uses less digits than its factorization.

12421214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477754.

The product of its digits is 128, while the sum is 17.

The square root of 12421214 is about 3524.3742707040. The cubic root of 12421214 is about 231.5908240483.

Adding to 12421214 its reverse (41212421), we get a palindrome (53633635).

The spelling of 12421214 in words is "twelve million, four hundred twenty-one thousand, two hundred fourteen".