30030221312 has 104 divisors (see below), whose sum is σ = 73912438656. Its totient is φ = 11879940096.

The previous prime is 30030221303. The next prime is 30030221329. The reversal of 30030221312 is 21312203003.

It is a tau number, because it is divible by the number of its divisors (104).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332453 + ... + 413019.

Almost surely, 2^30030221312 is an apocalyptic number.

30030221312 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 30030221312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36956219328).

30030221312 is an abundant number, since it is smaller than the sum of its proper divisors (43882217344).

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

30030221312 is an equidigital number, since it uses as much as digits as its factorization.

30030221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80611 (or 80589 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30030221312 its reverse (21312203003), we get a palindrome (51342424315).

The spelling of 30030221312 in words is "thirty billion, thirty million, two hundred twenty-one thousand, three hundred twelve".