30221220232 has 64 divisors (see below), whose sum is σ = 68655651840. Its totient is φ = 12195360000.

The previous prime is 30221220223. The next prime is 30221220319. The reversal of 30221220232 is 23202212203.

It is a super-2 number, since 2×30221220232² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171019 + ... + 299482.

It is an arithmetic number, because the mean of its divisors is an integer number (1072744560).

Almost surely, 2^30221220232 is an apocalyptic number.

It is an amenable number.

30221220232 is an abundant number, since it is smaller than the sum of its proper divisors (38434431608).

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

30221220232 is a wasteful number, since it uses less digits than its factorization.

30221220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470582 (or 470578 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30221220232 its reverse (23202212203), we get a palindrome (53423432435).

The spelling of 30221220232 in words is "thirty billion, two hundred twenty-one million, two hundred twenty thousand, two hundred thirty-two".