12219372 has 72 divisors (see below), whose sum is σ = 34332480. Its totient is φ = 3633120.

The previous prime is 12219367. The next prime is 12219391. The reversal of 12219372 is 27391221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23103 + ... + 23625.

It is an arithmetic number, because the mean of its divisors is an integer number (476840).

Almost surely, 2^12219372 is an apocalyptic number.

12219372 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 12219372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17166240).

12219372 is an abundant number, since it is smaller than the sum of its proper divisors (22113108).

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

12219372 is a wasteful number, since it uses less digits than its factorization.

12219372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 598 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 12219372 is about 3495.6218330935. The cubic root of 12219372 is about 230.3295339339.

It can be divided in two parts, 122193 and 72, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 12219372 in words is "twelve million, two hundred nineteen thousand, three hundred seventy-two".