30220520020 has 12 divisors (see below), whose sum is σ = 63463092084. Its totient is φ = 12088208000.

The previous prime is 30220520009. The next prime is 30220520039. The reversal of 30220520020 is 2002502203.

It can be written as a sum of positive squares in 2 ways, for example, as 3249684036 + 26970835984 = 57006^2 + 164228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30220519976 and 30220520003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755512981 + ... + 755513020.

It is an arithmetic number, because the mean of its divisors is an integer number (5288591007).

Almost surely, 2^30220520020 is an apocalyptic number.

It is an amenable number.

30220520020 is an abundant number, since it is smaller than the sum of its proper divisors (33242572064).

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

30220520020 is a wasteful number, since it uses less digits than its factorization.

30220520020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511026010 (or 1511026008 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The spelling of 30220520020 in words is "thirty billion, two hundred twenty million, five hundred twenty thousand, twenty".