12120012212 has 72 divisors (see below), whose sum is σ = 26941309920. Its totient is φ = 4717621440.

The previous prime is 12120012211. The next prime is 12120012227. The reversal of 12120012212 is 21221002121.

12120012212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3143678 + ... + 3147530.

It is an arithmetic number, because the mean of its divisors is an integer number (374184860).

Almost surely, 2^12120012212 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 12120012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13470654960).

12120012212 is an abundant number, since it is smaller than the sum of its proper divisors (14821297708).

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

12120012212 is a wasteful number, since it uses less digits than its factorization.

12120012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341 (or 5332 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120012212 its reverse (21221002121), we get a palindrome (33341014333).

The spelling of 12120012212 in words is "twelve billion, one hundred twenty million, twelve thousand, two hundred twelve".