21222120333203 has 8 divisors (see below), whose sum is σ = 21280114188480. Its totient is φ = 21164136998760.

The previous prime is 21222120333179. The next prime is 21222120333221. The reversal of 21222120333203 is 30233302122212.

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

It is a cyclic number.

It is not a de Polignac number, because 21222120333203 - 2⁴⁰ = 20122608705427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222120333283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1418108 + ... + 6667478.

It is an arithmetic number, because the mean of its divisors is an integer number (2660014273560).

Almost surely, 2^{21222120333203} is an apocalyptic number.

21222120333203 is a deficient number, since it is larger than the sum of its proper divisors (57993855277).

21222120333203 is a wasteful number, since it uses less digits than its factorization.

21222120333203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260417.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21222120333203 its reverse (30233302122212), we get a palindrome (51455422455415).

The spelling of 21222120333203 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred twenty million, three hundred thirty-three thousand, two hundred three".