30012232120 has 128 divisors (see below), whose sum is σ = 75241635840. Its totient is φ = 10699153920.

The previous prime is 30012232093. The next prime is 30012232139. The reversal of 30012232120 is 2123221003.

It is a junction number, because it is equal to n+sod(n) for n = 30012232094 and 30012232103.

It is a congruent number.

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, 7848529 + ... + 7852351.

It is an arithmetic number, because the mean of its divisors is an integer number (587825280).

Almost surely, 2^30012232120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30012232120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37620817920).

30012232120 is an abundant number, since it is smaller than the sum of its proper divisors (45229403720).

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

30012232120 is a wasteful number, since it uses less digits than its factorization.

30012232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30012232120 its reverse (2123221003), we get a palindrome (32135453123).

The spelling of 30012232120 in words is "thirty billion, twelve million, two hundred thirty-two thousand, one hundred twenty".