221430330441 has 6 divisors (see below), whose sum is σ = 319843810650. Its totient is φ = 147620220288.

The previous prime is 221430330431. The next prime is 221430330463. The reversal of 221430330441 is 144033034122.

221430330441 is a `hidden beast` number, since 2 + 2 + 14 + 303 + 304 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 220520403216 + 909927225 = 469596^2 + 30165^2 .

It is not a de Polignac number, because 221430330441 - 2⁶ = 221430330377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221430330421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12301685016 + ... + 12301685033.

It is an arithmetic number, because the mean of its divisors is an integer number (53307301775).

Almost surely, 2^221430330441 is an apocalyptic number.

It is an amenable number.

221430330441 is a deficient number, since it is larger than the sum of its proper divisors (98413480209).

221430330441 is a wasteful number, since it uses less digits than its factorization.

221430330441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24603370055 (or 24603370052 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 221430330441 its reverse (144033034122), we get a palindrome (365463364563).

The spelling of 221430330441 in words is "two hundred twenty-one billion, four hundred thirty million, three hundred thirty thousand, four hundred forty-one".