30230222221 has 4 divisors (see below), whose sum is σ = 31047255292. Its totient is φ = 29413189152.

The previous prime is 30230222177. The next prime is 30230222227. The reversal of 30230222221 is 12222203203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12222203203 = 7 ⋅1746029029.

It can be written as a sum of positive squares in 2 ways, for example, as 14038932196 + 16191290025 = 118486^2 + 127245^2 .

It is a cyclic number.

It is not a de Polignac number, because 30230222221 - 2⁹ = 30230221709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230222227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408516480 + ... + 408516553.

It is an arithmetic number, because the mean of its divisors is an integer number (7761813823).

Almost surely, 2^30230222221 is an apocalyptic number.

It is an amenable number.

30230222221 is a deficient number, since it is larger than the sum of its proper divisors (817033071).

30230222221 is an equidigital number, since it uses as much as digits as its factorization.

30230222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817033070.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30230222221 its reverse (12222203203), we get a palindrome (42452425424).

The spelling of 30230222221 in words is "thirty billion, two hundred thirty million, two hundred twenty-two thousand, two hundred twenty-one".