30220354220520 has 64 divisors (see below), whose sum is σ = 90661480416000. Its totient is φ = 8058723991808.

The previous prime is 30220354220477. The next prime is 30220354220549. The reversal of 30220354220520 is 2502245302203.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 34242961 + ... + 35114399.

It is an arithmetic number, because the mean of its divisors is an integer number (1416585631500).

Almost surely, 2^{30220354220520} is an apocalyptic number.

30220354220520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30220354220520 is an abundant number, since it is smaller than the sum of its proper divisors (60441126195480).

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

30220354220520 is a wasteful number, since it uses less digits than its factorization.

30220354220520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160442 (or 1160438 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 30220354220520 its reverse (2502245302203), we get a palindrome (32722599522723).

The spelling of 30220354220520 in words is "thirty trillion, two hundred twenty billion, three hundred fifty-four million, two hundred twenty thousand, five hundred twenty".