3822322821 has 4 divisors (see below), whose sum is σ = 5096430432. Its totient is φ = 2548215212.

The previous prime is 3822322813. The next prime is 3822322837. The reversal of 3822322821 is 1282232283.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1282232283 = 3 ⋅427410761.

It is a cyclic number.

It is not a de Polignac number, because 3822322821 - 2³ = 3822322813 is a prime.

It is a super-3 number, since 3×3822322821³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3822322811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637053801 + ... + 637053806.

It is an arithmetic number, because the mean of its divisors is an integer number (1274107608).

Almost surely, 2^3822322821 is an apocalyptic number.

It is an amenable number.

3822322821 is a deficient number, since it is larger than the sum of its proper divisors (1274107611).

3822322821 is a wasteful number, since it uses less digits than its factorization.

3822322821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274107610.

The product of its digits is 18432, while the sum is 33.

The square root of 3822322821 is about 61824.9368863406. The cubic root of 3822322821 is about 1563.5404495176.

It can be divided in two parts, 382232282 and 1, that added together give a palindrome (382232283).

The spelling of 3822322821 in words is "three billion, eight hundred twenty-two million, three hundred twenty-two thousand, eight hundred twenty-one".