30212023220 has 24 divisors (see below), whose sum is σ = 63584097864. Its totient is φ = 12058361856.

The previous prime is 30212023211. The next prime is 30212023271. The reversal of 30212023220 is 2232021203.

It can be written as a sum of positive squares in 4 ways, for example, as 11983243024 + 18228780196 = 109468^2 + 135014^2 .

It is a congruent number.

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, 1643597 + ... + 1661876.

It is an arithmetic number, because the mean of its divisors is an integer number (2649337411).

Almost surely, 2^30212023220 is an apocalyptic number.

It is an amenable number.

30212023220 is an abundant number, since it is smaller than the sum of its proper divisors (33372074644).

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

30212023220 is a wasteful number, since it uses less digits than its factorization.

30212023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305939 (or 3305937 counting only the distinct ones).

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

Adding to 30212023220 its reverse (2232021203), we get a palindrome (32444044423).

The spelling of 30212023220 in words is "thirty billion, two hundred twelve million, twenty-three thousand, two hundred twenty".