12228833 has 4 divisors (see below), whose sum is σ = 12559380. Its totient is φ = 11898288.

The previous prime is 12228823. The next prime is 12228841. The reversal of 12228833 is 33882221.

12228833 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 an emirpimes, since its reverse is a distinct semiprime: 33882221 = 379 ⋅89399.

It can be written as a sum of positive squares in 2 ways, for example, as 4231249 + 7997584 = 2057^2 + 2828^2 .

It is a cyclic number.

It is not a de Polignac number, because 12228833 - 2⁸ = 12228577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12228796 and 12228805.

It is not an unprimeable number, because it can be changed into a prime (12228823) 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, 165218 + ... + 165291.

It is an arithmetic number, because the mean of its divisors is an integer number (3139845).

Almost surely, 2^12228833 is an apocalyptic number.

It is an amenable number.

12228833 is a deficient number, since it is larger than the sum of its proper divisors (330547).

12228833 is an equidigital number, since it uses as much as digits as its factorization.

12228833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330546.

The product of its digits is 4608, while the sum is 29.

The square root of 12228833 is about 3496.9748354828. The cubic root of 12228833 is about 230.3889637625.

It can be divided in two parts, 12 and 228833, that multiplied together give a triangular number (2745996 = T₂₃₄₃).

The spelling of 12228833 in words is "twelve million, two hundred twenty-eight thousand, eight hundred thirty-three".