12209910 has 64 divisors (see below), whose sum is σ = 31492800. Its totient is φ = 3018752.

The previous prime is 12209887. The next prime is 12209921. The reversal of 12209910 is 1990221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45256 + ... + 45524.

It is an arithmetic number, because the mean of its divisors is an integer number (492075).

Almost surely, 2^12209910 is an apocalyptic number.

12209910 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 12209910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15746400).

12209910 is an abundant number, since it is smaller than the sum of its proper divisors (19282890).

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

12209910 is a wasteful number, since it uses less digits than its factorization.

12209910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12209910 is about 3494.2681637218. The cubic root of 12209910 is about 230.2700671347.

The spelling of 12209910 in words is "twelve million, two hundred nine thousand, nine hundred ten".