30220313220 has 96 divisors (see below), whose sum is σ = 94881494400. Its totient is φ = 7984801152.

The previous prime is 30220313173. The next prime is 30220313239. The reversal of 30220313220 is 2231302203.

It is a happy number.

It is a super-2 number, since 2×30220313220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30220313193 and 30220313202.

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 31 ways as a sum of consecutive naturals, for example, 197854 + ... + 315573.

It is an arithmetic number, because the mean of its divisors is an integer number (988348900).

Almost surely, 2^30220313220 is an apocalyptic number.

30220313220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30220313220 is an abundant number, since it is smaller than the sum of its proper divisors (64661181180).

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

30220313220 is a wasteful number, since it uses less digits than its factorization.

30220313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513554 (or 513546 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30220313220 its reverse (2231302203), we get a palindrome (32451615423).

The spelling of 30220313220 in words is "thirty billion, two hundred twenty million, three hundred thirteen thousand, two hundred twenty".