30222213320 has 128 divisors (see below), whose sum is σ = 75839833440. Its totient is φ = 10768343040.

The previous prime is 30222213313. The next prime is 30222213397. The reversal of 30222213320 is 2331222203.

It can be written as a sum of positive squares in 16 ways, for example, as 103999204 + 30118214116 = 10198^2 + 173546^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30222213292 and 30222213301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1672172 + ... + 1690148.

Almost surely, 2^30222213320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30222213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37919916720).

30222213320 is an abundant number, since it is smaller than the sum of its proper divisors (45617620120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30222213320 is a wasteful number, since it uses less digits than its factorization.

30222213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18115 (or 18111 counting only the distinct ones).

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

Adding to 30222213320 its reverse (2331222203), we get a palindrome (32553435523).

The spelling of 30222213320 in words is "thirty billion, two hundred twenty-two million, two hundred thirteen thousand, three hundred twenty".