12101213424 has 80 divisors (see below), whose sum is σ = 32045663232. Its totient is φ = 3932888064.

The previous prime is 12101213419. The next prime is 12101213441. The reversal of 12101213424 is 42431210121.

12101213424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12101213424.

It is a congruent number.

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, 1219009 + ... + 1228895.

Almost surely, 2^12101213424 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 12101213424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16022831616).

12101213424 is an abundant number, since it is smaller than the sum of its proper divisors (19944449808).

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

12101213424 is a wasteful number, since it uses less digits than its factorization.

12101213424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534 (or 10528 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12101213424 its reverse (42431210121), we get a palindrome (54532423545).

The spelling of 12101213424 in words is "twelve billion, one hundred one million, two hundred thirteen thousand, four hundred twenty-four".