30000220032 has 128 divisors (see below), whose sum is σ = 80372466720. Its totient is φ = 9914572800.

The previous prime is 30000220021. The next prime is 30000220067. The reversal of 30000220032 is 23002200003.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45385782 + ... + 45386442.

Almost surely, 2^30000220032 is an apocalyptic number.

30000220032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30000220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40186233360).

30000220032 is an abundant number, since it is smaller than the sum of its proper divisors (50372246688).

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

30000220032 is a wasteful number, since it uses less digits than its factorization.

30000220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30000220032 its reverse (23002200003), we get a palindrome (53002420035).

The spelling of 30000220032 in words is "thirty billion, two hundred twenty thousand, thirty-two".