21113325200 has 60 divisors (see below), whose sum is σ = 55336117488. Its totient is φ = 7677571200.

The previous prime is 21113325193. The next prime is 21113325221. The reversal of 21113325200 is 252331112.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 11 ways as a sum of consecutive naturals, for example, 2394842 + ... + 2403641.

Almost surely, 2^21113325200 is an apocalyptic number.

21113325200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113325200 is an abundant number, since it is smaller than the sum of its proper divisors (34222792288).

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

21113325200 is a wasteful number, since it uses less digits than its factorization.

21113325200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798512 (or 4798501 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 21113325200 its reverse (252331112), we get a palindrome (21365656312).

The spelling of 21113325200 in words is "twenty-one billion, one hundred thirteen million, three hundred twenty-five thousand, two hundred".