30220221220 has 24 divisors (see below), whose sum is σ = 72528531264. Its totient is φ = 10361218656.

The previous prime is 30220221217. The next prime is 30220221253. The reversal of 30220221220 is 2212202203.

It is a junction number, because it is equal to n+sod(n) for n = 30220221194 and 30220221203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107929222 + ... + 107929501.

It is an arithmetic number, because the mean of its divisors is an integer number (3022022136).

Almost surely, 2^30220221220 is an apocalyptic number.

It is an amenable number.

30220221220 is an abundant number, since it is smaller than the sum of its proper divisors (42308310044).

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

30220221220 is a wasteful number, since it uses less digits than its factorization.

30220221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215858739 (or 215858737 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30220221220 its reverse (2212202203), we get a palindrome (32432423423).

The spelling of 30220221220 in words is "thirty billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty".