12260421 has 12 divisors (see below), whose sum is σ = 17846400. Its totient is φ = 8110440.

The previous prime is 12260419. The next prime is 12260447. The reversal of 12260421 is 12406221.

It is not a de Polignac number, because 12260421 - 2¹ = 12260419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12260394 and 12260403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12260401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4021 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (1487200).

Almost surely, 2^12260421 is an apocalyptic number.

It is an amenable number.

12260421 is a deficient number, since it is larger than the sum of its proper divisors (5585979).

12260421 is a wasteful number, since it uses less digits than its factorization.

12260421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536 (or 10533 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12260421 is about 3501.4883978103. The cubic root of 12260421 is about 230.5871639078.

Adding to 12260421 its reverse (12406221), we get a palindrome (24666642).

The spelling of 12260421 in words is "twelve million, two hundred sixty thousand, four hundred twenty-one".