21052348200 has 192 divisors, whose sum is σ = 78091876800. Its totient is φ = 5182099200.

The previous prime is 21052348169. The next prime is 21052348211. The reversal of 21052348200 is 284325012.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 47 ways as a sum of consecutive naturals, for example, 79746 + ... + 220145.

It is an arithmetic number, because the mean of its divisors is an integer number (406728525).

Almost surely, 2^21052348200 is an apocalyptic number.

21052348200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21052348200 is an abundant number, since it is smaller than the sum of its proper divisors (57039528600).

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

21052348200 is a wasteful number, since it uses less digits than its factorization.

21052348200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299929 (or 299914 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 21052348200 in words is "twenty-one billion, fifty-two million, three hundred forty-eight thousand, two hundred".