12268021 has 4 divisors (see below), whose sum is σ = 12387232. Its totient is φ = 12148812.

The previous prime is 12268013. The next prime is 12268031. The reversal of 12268021 is 12086221.

12268021 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: 12086221 = 7 ⋅1726603.

It is a cyclic number.

It is not a de Polignac number, because 12268021 - 2³ = 12268013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12267983 and 12268001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12268031) 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, 59451 + ... + 59656.

It is an arithmetic number, because the mean of its divisors is an integer number (3096808).

Almost surely, 2^12268021 is an apocalyptic number.

It is an amenable number.

12268021 is a deficient number, since it is larger than the sum of its proper divisors (119211).

12268021 is a wasteful number, since it uses less digits than its factorization.

12268021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119210.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12268021 is about 3502.5734824554. The cubic root of 12268021 is about 230.6347995875.

The spelling of 12268021 in words is "twelve million, two hundred sixty-eight thousand, twenty-one".