522321219 has 24 divisors (see below), whose sum is σ = 873167360. Its totient is φ = 294688368.

The previous prime is 522321203. The next prime is 522321271. The reversal of 522321219 is 912123225.

It is a happy number.

It is not a de Polignac number, because 522321219 - 2⁴ = 522321203 is a prime.

It is a super-2 number, since 2×522321219² = 545638911635291922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522321192 and 522321201.

It is not an unprimeable number, because it can be changed into a prime (522321619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47497 + ... + 57450.

Almost surely, 2^522321219 is an apocalyptic number.

522321219 is a deficient number, since it is larger than the sum of its proper divisors (350846141).

522321219 is a wasteful number, since it uses less digits than its factorization.

522321219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105039 (or 105036 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 522321219 is about 22854.3479233165. The cubic root of 522321219 is about 805.3399122620.

The spelling of 522321219 in words is "five hundred twenty-two million, three hundred twenty-one thousand, two hundred nineteen".