12219830 has 16 divisors (see below), whose sum is σ = 25138080. Its totient is φ = 4189632.

The previous prime is 12219829. The next prime is 12219871. The reversal of 12219830 is 3891221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12219830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87215 + ... + 87354.

It is an arithmetic number, because the mean of its divisors is an integer number (1571130).

Almost surely, 2^12219830 is an apocalyptic number.

12219830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12219830 is an abundant number, since it is smaller than the sum of its proper divisors (12918250).

12219830 is a wasteful number, since it uses less digits than its factorization.

12219830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174583.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12219830 is about 3495.6873429985. The cubic root of 12219830 is about 230.3324115943.

The spelling of 12219830 in words is "twelve million, two hundred nineteen thousand, eight hundred thirty".