12003210 has 48 divisors (see below), whose sum is σ = 31413096. Its totient is φ = 3179904.

The previous prime is 12003209. The next prime is 12003221. The reversal of 12003210 is 1230021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11471769 + 531441 = 3387^2 + 729^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12003192 and 12003201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17392 + ... + 18068.

Almost surely, 2^12003210 is an apocalyptic number.

12003210 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 12003210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15706548).

12003210 is an abundant number, since it is smaller than the sum of its proper divisors (19409886).

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

12003210 is a wasteful number, since it uses less digits than its factorization.

12003210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12003210 is about 3464.5649077482. The cubic root of 12003210 is about 228.9632607613.

Adding to 12003210 its reverse (1230021), we get a palindrome (13233231).

The spelling of 12003210 in words is "twelve million, three thousand, two hundred ten".