12016212 has 96 divisors (see below), whose sum is σ = 33530112. Its totient is φ = 3311616.

The previous prime is 12016201. The next prime is 12016219. The reversal of 12016212 is 21261021.

It is a junction number, because it is equal to n+sod(n) for n = 12016191 and 12016200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016219) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60898 + ... + 61094.

It is an arithmetic number, because the mean of its divisors is an integer number (349272).

Almost surely, 2^12016212 is an apocalyptic number.

12016212 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 12016212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16765056).

12016212 is an abundant number, since it is smaller than the sum of its proper divisors (21513900).

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

12016212 is a wasteful number, since it uses less digits than its factorization.

12016212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 12016212 is about 3466.4408259770. The cubic root of 12016212 is about 229.0459027120.

Adding to 12016212 its reverse (21261021), we get a palindrome (33277233).

The spelling of 12016212 in words is "twelve million, sixteen thousand, two hundred twelve".