30332121220 has 24 divisors (see below), whose sum is σ = 65419008984. Its totient is φ = 11804933376.

The previous prime is 30332121187. The next prime is 30332121223. The reversal of 30332121220 is 2212123303.

It can be written as a sum of positive squares in 4 ways, for example, as 6842267524 + 23489853696 = 82718^2 + 153264^2 .

It is not an unprimeable number, because it can be changed into a prime (30332121223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20493937 + ... + 20495416.

It is an arithmetic number, because the mean of its divisors is an integer number (2725792041).

Almost surely, 2^30332121220 is an apocalyptic number.

It is an amenable number.

30332121220 is an abundant number, since it is smaller than the sum of its proper divisors (35086887764).

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

30332121220 is a wasteful number, since it uses less digits than its factorization.

30332121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40989399 (or 40989397 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30332121220 its reverse (2212123303), we get a palindrome (32544244523).

The spelling of 30332121220 in words is "thirty billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty".