30221132320220 has 24 divisors (see below), whose sum is σ = 63465089857008. Its totient is φ = 12088317312000.

The previous prime is 30221132320213. The next prime is 30221132320237. The reversal of 30221132320220 is 2202323112203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6638981 + ... + 10223420.

It is an arithmetic number, because the mean of its divisors is an integer number (2644378744042).

Almost surely, 2^{30221132320220} is an apocalyptic number.

It is an amenable number.

30221132320220 is an abundant number, since it is smaller than the sum of its proper divisors (33243957536788).

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

30221132320220 is a wasteful number, since it uses less digits than its factorization.

30221132320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16952021 (or 16952019 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30221132320220 its reverse (2202323112203), we get a palindrome (32423455432423).

The spelling of 30221132320220 in words is "thirty trillion, two hundred twenty-one billion, one hundred thirty-two million, three hundred twenty thousand, two hundred twenty".