21200022300320 has 48 divisors (see below), whose sum is σ = 50245068945960. Its totient is φ = 8452916219904.

The previous prime is 21200022300313. The next prime is 21200022300323. The reversal of 21200022300320 is 2300322000212.

It can be written as a sum of positive squares in 4 ways, for example, as 15971244931216 + 5228777369104 = 3996404^2 + 2286652^2 .

It is not an unprimeable number, because it can be changed into a prime (21200022300323) by changing a digit.

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, 211611485 + ... + 211711644.

Almost surely, 2^{21200022300320} is an apocalyptic number.

21200022300320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21200022300320 is an abundant number, since it is smaller than the sum of its proper divisors (29045046645640).

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

21200022300320 is a wasteful number, since it uses less digits than its factorization.

21200022300320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423323457 (or 423323449 counting only the distinct ones).

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

Adding to 21200022300320 its reverse (2300322000212), we get a palindrome (23500344300532).

The spelling of 21200022300320 in words is "twenty-one trillion, two hundred billion, twenty-two million, three hundred thousand, three hundred twenty".