304035214221 has 12 divisors (see below), whose sum is σ = 443048366748. Its totient is φ = 200896424064.

The previous prime is 304035214181. The next prime is 304035214247. The reversal of 304035214221 is 122412530403.

304035214221 is a `hidden beast` number, since 30 + 403 + 5 + 2 + 1 + 4 + 221 = 666.

304035214221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 21532334121 + 282502880100 = 146739^2 + 531510^2 .

It is not a de Polignac number, because 304035214221 - 2¹⁰ = 304035213197 is a prime.

It is a super-2 number, since 2×304035214221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304035214321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149475490 + ... + 149477523.

It is an arithmetic number, because the mean of its divisors is an integer number (36920697229).

Almost surely, 2^304035214221 is an apocalyptic number.

It is an amenable number.

304035214221 is a deficient number, since it is larger than the sum of its proper divisors (139013152527).

304035214221 is a wasteful number, since it uses less digits than its factorization.

304035214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298953132 (or 298953129 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 304035214221 its reverse (122412530403), we get a palindrome (426447744624).

The spelling of 304035214221 in words is "three hundred four billion, thirty-five million, two hundred fourteen thousand, two hundred twenty-one".