12233121 has 16 divisors (see below), whose sum is σ = 16758336. Its totient is φ = 7934976.

The previous prime is 12233107. The next prime is 12233159. The reversal of 12233121 is 12133221.

12233121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12233121 - 2⁶ = 12233057 is a prime.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12233121.

It is not an unprimeable number, because it can be changed into a prime (12233101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17841 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (1047396).

Almost surely, 2^12233121 is an apocalyptic number.

It is an amenable number.

12233121 is a deficient number, since it is larger than the sum of its proper divisors (4525215).

12233121 is an equidigital number, since it uses as much as digits as its factorization.

12233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832.

The product of its digits is 72, while the sum is 15.

The square root of 12233121 is about 3497.5878830989. The cubic root of 12233121 is about 230.4158889927.

Adding to 12233121 its reverse (12133221), we get a palindrome (24366342).

The spelling of 12233121 in words is "twelve million, two hundred thirty-three thousand, one hundred twenty-one".