12421012 has 24 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 5861856.

The previous prime is 12421009. The next prime is 12421021. The reversal of 12421012 is 21012421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12420983 and 12421001.

It is a congruent number.

It is an unprimeable number.

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, 6414 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^12421012 is an apocalyptic number.

It is an amenable number.

12421012 is a deficient number, since it is larger than the sum of its proper divisors (10561388).

12421012 is a wasteful number, since it uses less digits than its factorization.

12421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12421012 is about 3524.3456130181. The cubic root of 12421012 is about 231.5895686262.

Adding to 12421012 its reverse (21012421), we get a palindrome (33433433).

The spelling of 12421012 in words is "twelve million, four hundred twenty-one thousand, twelve".