30212320220 has 24 divisors (see below), whose sum is σ = 66204389664. Its totient is φ = 11559496256.

The previous prime is 30212320213. The next prime is 30212320249. The reversal of 30212320220 is 2202321203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32839019 + ... + 32839938.

It is an arithmetic number, because the mean of its divisors is an integer number (2758516236).

Almost surely, 2^30212320220 is an apocalyptic number.

It is an amenable number.

30212320220 is an abundant number, since it is smaller than the sum of its proper divisors (35992069444).

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

30212320220 is a wasteful number, since it uses less digits than its factorization.

30212320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65678989 (or 65678987 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30212320220 its reverse (2202321203), we get a palindrome (32414641423).

The spelling of 30212320220 in words is "thirty billion, two hundred twelve million, three hundred twenty thousand, two hundred twenty".