305230300221 has 32 divisors (see below), whose sum is σ = 515995776000. Its totient is φ = 155873710080.

The previous prime is 305230300211. The next prime is 305230300247. The reversal of 305230300221 is 122003032503.

It is not a de Polignac number, because 305230300221 - 2¹⁴ = 305230283837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305230300211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11184196 + ... + 11211453.

It is an arithmetic number, because the mean of its divisors is an integer number (16124868000).

Almost surely, 2^305230300221 is an apocalyptic number.

It is an amenable number.

305230300221 is a deficient number, since it is larger than the sum of its proper divisors (210765475779).

305230300221 is a wasteful number, since it uses less digits than its factorization.

305230300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22395729.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 305230300221 its reverse (122003032503), we get a palindrome (427233332724).

The spelling of 305230300221 in words is "three hundred five billion, two hundred thirty million, three hundred thousand, two hundred twenty-one".