30221132120 has 96 divisors (see below), whose sum is σ = 69626556720. Its totient is φ = 11805381120.

The previous prime is 30221132107. The next prime is 30221132171. The reversal of 30221132120 is 2123112203.

It is a super-2 number, since 2×30221132120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31123235 + ... + 31124205.

Almost surely, 2^30221132120 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 30221132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34813278360).

30221132120 is an abundant number, since it is smaller than the sum of its proper divisors (39405424600).

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

30221132120 is a wasteful number, since it uses less digits than its factorization.

30221132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30221132120 its reverse (2123112203), we get a palindrome (32344244323).

The spelling of 30221132120 in words is "thirty billion, two hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty".