12001020330 has 64 divisors (see below), whose sum is σ = 31141853568. Its totient is φ = 2942304000.

The previous prime is 12001020319. The next prime is 12001020349. The reversal of 12001020330 is 3302010021.

It is a happy number.

12001020330 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12001020330² (a number of 21 digits) contains 22 as substring.

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, 36592 + ... + 159188.

It is an arithmetic number, because the mean of its divisors is an integer number (486591462).

Almost surely, 2^12001020330 is an apocalyptic number.

12001020330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12001020330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15570926784).

12001020330 is an abundant number, since it is smaller than the sum of its proper divisors (19140833238).

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

12001020330 is a wasteful number, since it uses less digits than its factorization.

12001020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122871.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 12001020330 its reverse (3302010021), we get a palindrome (15303030351).

The spelling of 12001020330 in words is "twelve billion, one million, twenty thousand, three hundred thirty".