30011033220 has 384 divisors, whose sum is σ = 101335449600. Its totient is φ = 6494515200.

The previous prime is 30011033203. The next prime is 30011033231. The reversal of 30011033220 is 2233011003.

It is a super-2 number, since 2×30011033220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30011033220.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 110741685 + ... + 110741955.

It is an arithmetic number, because the mean of its divisors is an integer number (263894400).

Almost surely, 2^30011033220 is an apocalyptic number.

30011033220 is a gapful number since it is divisible by the number (30) 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 30011033220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50667724800).

30011033220 is an abundant number, since it is smaller than the sum of its proper divisors (71324416380).

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

30011033220 is a wasteful number, since it uses less digits than its factorization.

30011033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30011033220 its reverse (2233011003), we get a palindrome (32244044223).

The spelling of 30011033220 in words is "thirty billion, eleven million, thirty-three thousand, two hundred twenty".