21200002200002 has 16 divisors (see below), whose sum is σ = 31911959939832. Its totient is φ = 10562689985280.

The previous prime is 21200002199983. The next prime is 21200002200007. The reversal of 21200002200002 is 20000220000212.

It can be written as a sum of positive squares in 4 ways, for example, as 15471643426801 + 5728358773201 = 3933401^2 + 2393399^2 .

It is not an unprimeable number, because it can be changed into a prime (21200002200007) 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, 3537338 + ... + 7410314.

Almost surely, 2^{21200002200002} is an apocalyptic number.

21200002200002 is a deficient number, since it is larger than the sum of its proper divisors (10711957739830).

21200002200002 is a wasteful number, since it uses less digits than its factorization.

21200002200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882613.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 21200002200002 its reverse (20000220000212), we get a palindrome (41200222200214).

The spelling of 21200002200002 in words is "twenty-one trillion, two hundred billion, two million, two hundred thousand, two".