30030221220 has 96 divisors (see below), whose sum is σ = 86193386496. Its totient is φ = 7807488000.

The previous prime is 30030221209. The next prime is 30030221233. The reversal of 30030221220 is 2212203003.

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 30030221220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4796332 + ... + 4802588.

It is an arithmetic number, because the mean of its divisors is an integer number (897847776).

Almost surely, 2^30030221220 is an apocalyptic number.

30030221220 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 30030221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43096693248).

30030221220 is an abundant number, since it is smaller than the sum of its proper divisors (56163165276).

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

30030221220 is a wasteful number, since it uses less digits than its factorization.

30030221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261 (or 8259 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30030221220 its reverse (2212203003), we get a palindrome (32242424223).

The spelling of 30030221220 in words is "thirty billion, thirty million, two hundred twenty-one thousand, two hundred twenty".