12210912 has 120 divisors (see below), whose sum is σ = 41103216. Its totient is φ = 3483648.

The previous prime is 12210883. The next prime is 12210937. The reversal of 12210912 is 21901221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 17808 + ... + 18480.

Almost surely, 2^12210912 is an apocalyptic number.

12210912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20551608).

12210912 is an abundant number, since it is smaller than the sum of its proper divisors (28892304).

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

12210912 is an equidigital number, since it uses as much as digits as its factorization.

12210912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12210912 is about 3494.4115384425. The cubic root of 12210912 is about 230.2763659608.

The spelling of 12210912 in words is "twelve million, two hundred ten thousand, nine hundred twelve".