12231330 has 64 divisors (see below), whose sum is σ = 32192640. Its totient is φ = 2960384.

The previous prime is 12231311. The next prime is 12231367. The reversal of 12231330 is 3313221.

12231330 = T₄₀₀ + T₄₀₁ + ... + T₅₁₅.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14377 + ... + 15203.

It is an arithmetic number, because the mean of its divisors is an integer number (503010).

Almost surely, 2^12231330 is an apocalyptic number.

12231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16096320).

12231330 is an abundant number, since it is smaller than the sum of its proper divisors (19961310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12231330 is a wasteful number, since it uses less digits than its factorization.

12231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12231330 is about 3497.3318401318. The cubic root of 12231330 is about 230.4046437022.

Adding to 12231330 its reverse (3313221), we get a palindrome (15544551).

It can be divided in two parts, 12231 and 330, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 12231330 in words is "twelve million, two hundred thirty-one thousand, three hundred thirty".