324121220 has 24 divisors (see below), whose sum is σ = 692193600. Its totient is φ = 127450592.

The previous prime is 324121199. The next prime is 324121253. The reversal of 324121220 is 22121423.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136160 + ... + 138519.

It is an arithmetic number, because the mean of its divisors is an integer number (28841400).

Almost surely, 2^324121220 is an apocalyptic number.

It is an amenable number.

324121220 is an abundant number, since it is smaller than the sum of its proper divisors (368072380).

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

324121220 is a wasteful number, since it uses less digits than its factorization.

324121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274747 (or 274745 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 324121220 is about 18003.3669073315. The cubic root of 324121220 is about 686.9141905683.

Adding to 324121220 its reverse (22121423), we get a palindrome (346242643).

The spelling of 324121220 in words is "three hundred twenty-four million, one hundred twenty-one thousand, two hundred twenty".