21200244010 has 16 divisors (see below), whose sum is σ = 41629570272. Its totient is φ = 7709179600.

The previous prime is 21200244007. The next prime is 21200244031. The reversal of 21200244010 is 1044200212.

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, 96364636 + ... + 96364855.

It is an arithmetic number, because the mean of its divisors is an integer number (2601848142).

Almost surely, 2^21200244010 is an apocalyptic number.

21200244010 is a deficient number, since it is larger than the sum of its proper divisors (20429326262).

21200244010 is a wasteful number, since it uses less digits than its factorization.

21200244010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192729509.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21200244010 its reverse (1044200212), we get a palindrome (22244444222).

The spelling of 21200244010 in words is "twenty-one billion, two hundred million, two hundred forty-four thousand, ten".