30230203221 has 12 divisors (see below), whose sum is σ = 44317579072. Its totient is φ = 19852670376.

The previous prime is 30230203181. The next prime is 30230203261. The reversal of 30230203221 is 12230203203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30230203181) and next prime (30230203261).

It is not a de Polignac number, because 30230203221 - 2¹¹ = 30230201173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30230203194 and 30230203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230203261) 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, 25065901 + ... + 25067106.

Almost surely, 2^30230203221 is an apocalyptic number.

It is an amenable number.

30230203221 is a deficient number, since it is larger than the sum of its proper divisors (14087375851).

30230203221 is a wasteful number, since it uses less digits than its factorization.

30230203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50133080 (or 50133077 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Subtracting from 30230203221 its sum of digits (18), we obtain a palindrome (30230203203).

Adding to 30230203221 its reverse (12230203203), we get a palindrome (42460406424).

The spelling of 30230203221 in words is "thirty billion, two hundred thirty million, two hundred three thousand, two hundred twenty-one".