12240235212 has 48 divisors (see below), whose sum is σ = 30321843552. Its totient is φ = 3829754880.

The previous prime is 12240235193. The next prime is 12240235223. The reversal of 12240235212 is 21253204221.

12240235212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4339 + ... + 156522.

It is an arithmetic number, because the mean of its divisors is an integer number (631705074).

Almost surely, 2^12240235212 is an apocalyptic number.

12240235212 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 12240235212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15160921776).

12240235212 is an abundant number, since it is smaller than the sum of its proper divisors (18081608340).

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

12240235212 is a wasteful number, since it uses less digits than its factorization.

12240235212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161258 (or 161256 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12240235212 its reverse (21253204221), we get a palindrome (33493439433).

The spelling of 12240235212 in words is "twelve billion, two hundred forty million, two hundred thirty-five thousand, two hundred twelve".