382182572221 has 4 divisors (see below), whose sum is σ = 382240162492. Its totient is φ = 382124981952.

The previous prime is 382182572207. The next prime is 382182572227. The reversal of 382182572221 is 122275281283.

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 177413652025 + 204768920196 = 421205^2 + 452514^2 .

It is a cyclic number.

It is not a de Polignac number, because 382182572221 - 2¹¹ = 382182570173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382182572227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28785180 + ... + 28798453.

It is an arithmetic number, because the mean of its divisors is an integer number (95560040623).

Almost surely, 2^382182572221 is an apocalyptic number.

It is an amenable number.

382182572221 is a deficient number, since it is larger than the sum of its proper divisors (57590271).

382182572221 is an equidigital number, since it uses as much as digits as its factorization.

382182572221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57590270.

The product of its digits is 215040, while the sum is 43.

The spelling of 382182572221 in words is "three hundred eighty-two billion, one hundred eighty-two million, five hundred seventy-two thousand, two hundred twenty-one".