12201984 has 78 divisors (see below), whose sum is σ = 35352356. Its totient is φ = 4055040.

The previous prime is 12201961. The next prime is 12201991. The reversal of 12201984 is 48910221.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36699 + ... + 37029.

Almost surely, 2^12201984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17676178).

12201984 is an abundant number, since it is smaller than the sum of its proper divisors (23150372).

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

12201984 is an equidigital number, since it uses as much as digits as its factorization.

12201984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12201984 is about 3493.1338365428. The cubic root of 12201984 is about 230.2202301412.

The spelling of 12201984 in words is "twelve million, two hundred one thousand, nine hundred eighty-four".