12421211 has 8 divisors (see below), whose sum is σ = 13780800. Its totient is φ = 11100040.

The previous prime is 12421187. The next prime is 12421217. The reversal of 12421211 is 11212421.

It is a happy number.

12421211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12421211 - 2¹⁴ = 12404827 is a prime.

It is a plaindrome in base 15.

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 7 ways as a sum of consecutive naturals, for example, 8921 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (1722600).

Almost surely, 2^12421211 is an apocalyptic number.

12421211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12421211 is a deficient number, since it is larger than the sum of its proper divisors (1359589).

12421211 is a wasteful number, since it uses less digits than its factorization.

12421211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19209.

The product of its digits is 32, while the sum is 14.

The square root of 12421211 is about 3524.3738450965. The cubic root of 12421211 is about 231.5908054036.

Adding to 12421211 its reverse (11212421), we get a palindrome (23633632).

The spelling of 12421211 in words is "twelve million, four hundred twenty-one thousand, two hundred eleven".