21323272200 has 48 divisors (see below), whose sum is σ = 66102145680. Its totient is φ = 5686205760.

The previous prime is 21323272199. The next prime is 21323272247. The reversal of 21323272200 is 227232312.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 17768794 + ... + 17769993.

It is an arithmetic number, because the mean of its divisors is an integer number (1377128035).

Almost surely, 2^21323272200 is an apocalyptic number.

21323272200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21323272200 is an abundant number, since it is smaller than the sum of its proper divisors (44778873480).

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

21323272200 is a wasteful number, since it uses less digits than its factorization.

21323272200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35538806 (or 35538797 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The spelling of 21323272200 in words is "twenty-one billion, three hundred twenty-three million, two hundred seventy-two thousand, two hundred".