21200222121103 has 8 divisors (see below), whose sum is σ = 22441293666000. Its totient is φ = 19993152536448.

The previous prime is 21200222120989. The next prime is 21200222121131. The reversal of 21200222121103 is 30112122200212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21200222121103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200222121803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8500488778 + ... + 8500491271.

It is an arithmetic number, because the mean of its divisors is an integer number (2805161708250).

Almost surely, 2^{21200222121103} is an apocalyptic number.

21200222121103 is a deficient number, since it is larger than the sum of its proper divisors (1241071544897).

21200222121103 is a wasteful number, since it uses less digits than its factorization.

21200222121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17000980121.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21200222121103 its reverse (30112122200212), we get a palindrome (51312344321315).

The spelling of 21200222121103 in words is "twenty-one trillion, two hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred three".