324054540221 has 4 divisors (see below), whose sum is σ = 324109760700. Its totient is φ = 323999319744.

The previous prime is 324054540203. The next prime is 324054540233. The reversal of 324054540221 is 122045450423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47115477721 + 276939062500 = 217061^2 + 526250^2 .

It is a cyclic number.

It is not a de Polignac number, because 324054540221 - 2⁶ = 324054540157 is a prime.

It is a super-2 number, since 2×324054540221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324054540241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27601436 + ... + 27613173.

It is an arithmetic number, because the mean of its divisors is an integer number (81027440175).

Almost surely, 2^324054540221 is an apocalyptic number.

It is an amenable number.

324054540221 is a deficient number, since it is larger than the sum of its proper divisors (55220479).

324054540221 is an equidigital number, since it uses as much as digits as its factorization.

324054540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55220478.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 324054540221 its reverse (122045450423), we get a palindrome (446099990644).

The spelling of 324054540221 in words is "three hundred twenty-four billion, fifty-four million, five hundred forty thousand, two hundred twenty-one".