12212403324 has 48 divisors (see below), whose sum is σ = 32158062720. Its totient is φ = 3573115840.

The previous prime is 12212403323. The next prime is 12212403331. The reversal of 12212403324 is 42330421221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12212403294 and 12212403303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212403323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591314 + ... + 1598969.

It is an arithmetic number, because the mean of its divisors is an integer number (669959640).

Almost surely, 2^12212403324 is an apocalyptic number.

It is an amenable number.

12212403324 is an abundant number, since it is smaller than the sum of its proper divisors (19945659396).

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

12212403324 is a wasteful number, since it uses less digits than its factorization.

12212403324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190330 (or 3190328 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12212403324 its reverse (42330421221), we get a palindrome (54542824545).

The spelling of 12212403324 in words is "twelve billion, two hundred twelve million, four hundred three thousand, three hundred twenty-four".