12219180 has 24 divisors (see below), whose sum is σ = 34213872. Its totient is φ = 3258432.

The previous prime is 12219169. The next prime is 12219247. The reversal of 12219180 is 8191221.

It is a self number, because there is not a number n which added to its sum of digits gives 12219180.

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 7 ways as a sum of consecutive naturals, for example, 101767 + ... + 101886.

It is an arithmetic number, because the mean of its divisors is an integer number (1425578).

Almost surely, 2^12219180 is an apocalyptic number.

12219180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12219180 is an abundant number, since it is smaller than the sum of its proper divisors (21994692).

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

12219180 is a wasteful number, since it uses less digits than its factorization.

12219180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203665 (or 203663 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 12219180 is about 3495.5943700607. The cubic root of 12219180 is about 230.3283275571.

It can be divided in two parts, 1221 and 9180, that added together give a palindrome (10401).

The spelling of 12219180 in words is "twelve million, two hundred nineteen thousand, one hundred eighty".