21200221120002 has 16 divisors (see below), whose sum is σ = 42997631568192. Its totient is φ = 6967208818640.

The previous prime is 21200221119983. The next prime is 21200221120007. The reversal of 21200221120002 is 20002112200212.

It is not an unprimeable number, because it can be changed into a prime (21200221120007) 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, 24882888213 + ... + 24882889064.

It is an arithmetic number, because the mean of its divisors is an integer number (2687351973012).

Almost surely, 2^{21200221120002} is an apocalyptic number.

21200221120002 is an abundant number, since it is smaller than the sum of its proper divisors (21797410448190).

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

21200221120002 is a wasteful number, since it uses less digits than its factorization.

21200221120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49765777353.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21200221120002 its reverse (20002112200212), we get a palindrome (41202333320214).

The spelling of 21200221120002 in words is "twenty-one trillion, two hundred billion, two hundred twenty-one million, one hundred twenty thousand, two".