30332022221 has 4 divisors (see below), whose sum is σ = 30362084700. Its totient is φ = 30301959744.

The previous prime is 30332022211. The next prime is 30332022257. The reversal of 30332022221 is 12222023303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3293152996 + 27038869225 = 57386^2 + 164435^2 .

It is a cyclic number.

It is not a de Polignac number, because 30332022221 - 2⁶ = 30332022157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30332022193 and 30332022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30332022211) 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, 15029726 + ... + 15031743.

It is an arithmetic number, because the mean of its divisors is an integer number (7590521175).

Almost surely, 2^30332022221 is an apocalyptic number.

It is an amenable number.

30332022221 is a deficient number, since it is larger than the sum of its proper divisors (30062479).

30332022221 is a wasteful number, since it uses less digits than its factorization.

30332022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30062478.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30332022221 its reverse (12222023303), we get a palindrome (42554045524).

The spelling of 30332022221 in words is "thirty billion, three hundred thirty-two million, twenty-two thousand, two hundred twenty-one".