12254421 has 4 divisors (see below), whose sum is σ = 16339232. Its totient is φ = 8169612.

The previous prime is 12254419. The next prime is 12254447. The reversal of 12254421 is 12445221.

12254421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12445221 = 3 ⋅4148407.

It is not a de Polignac number, because 12254421 - 2¹ = 12254419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12254461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042401 + ... + 2042406.

It is an arithmetic number, because the mean of its divisors is an integer number (4084808).

Almost surely, 2^12254421 is an apocalyptic number.

It is an amenable number.

12254421 is a deficient number, since it is larger than the sum of its proper divisors (4084811).

12254421 is an equidigital number, since it uses as much as digits as its factorization.

12254421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084810.

The product of its digits is 640, while the sum is 21.

The square root of 12254421 is about 3500.6315144556. The cubic root of 12254421 is about 230.5495428850.

Adding to 12254421 its reverse (12445221), we get a palindrome (24699642).

The spelling of 12254421 in words is "twelve million, two hundred fifty-four thousand, four hundred twenty-one".