12212412472 has 64 divisors (see below), whose sum is σ = 25033276800. Its totient is φ = 5551720320.

The previous prime is 12212412467. The next prime is 12212412473. The reversal of 12212412472 is 27421421221.

12212412472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12212412472² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12212412472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212412473) 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 15 ways as a sum of consecutive naturals, for example, 1988847 + ... + 1994977.

It is an arithmetic number, because the mean of its divisors is an integer number (391144950).

Almost surely, 2^12212412472 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 12212412472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12516638400).

12212412472 is an abundant number, since it is smaller than the sum of its proper divisors (12820864328).

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

12212412472 is a wasteful number, since it uses less digits than its factorization.

12212412472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436 (or 6432 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

Adding to 12212412472 its reverse (27421421221), we get a palindrome (39633833693).

The spelling of 12212412472 in words is "twelve billion, two hundred twelve million, four hundred twelve thousand, four hundred seventy-two".