12934221 has 4 divisors (see below), whose sum is σ = 17245632. Its totient is φ = 8622812.

The previous prime is 12934189. The next prime is 12934237. The reversal of 12934221 is 12243921.

12934221 is digitally balanced in base 2, 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: 12243921 = 3 ⋅4081307.

It is a cyclic number.

It is not a de Polignac number, because 12934221 - 2⁵ = 12934189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12934191 and 12934200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12934241) 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, 2155701 + ... + 2155706.

It is an arithmetic number, because the mean of its divisors is an integer number (4311408).

Almost surely, 2^12934221 is an apocalyptic number.

It is an amenable number.

12934221 is a deficient number, since it is larger than the sum of its proper divisors (4311411).

12934221 is an equidigital number, since it uses as much as digits as its factorization.

12934221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311410.

The product of its digits is 864, while the sum is 24.

The square root of 12934221 is about 3596.4178010904. The cubic root of 12934221 is about 234.7362122327.

The spelling of 12934221 in words is "twelve million, nine hundred thirty-four thousand, two hundred twenty-one".