21002200210202 has 64 divisors (see below), whose sum is σ = 33162164985600. Its totient is φ = 9956678713344.

The previous prime is 21002200210097. The next prime is 21002200210207. The reversal of 21002200210202 is 20201200220012.

It is not an unprimeable number, because it can be changed into a prime (21002200210207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2157829328 + ... + 2157839060.

It is an arithmetic number, because the mean of its divisors is an integer number (518158827900).

Almost surely, 2^{21002200210202} is an apocalyptic number.

21002200210202 is a deficient number, since it is larger than the sum of its proper divisors (12159964775398).

21002200210202 is a wasteful number, since it uses less digits than its factorization.

21002200210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10887.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21002200210202 its reverse (20201200220012), we get a palindrome (41203400430214).

The spelling of 21002200210202 in words is "twenty-one trillion, two billion, two hundred million, two hundred ten thousand, two hundred two".