21202221330203 has 8 divisors (see below), whose sum is σ = 21208955169600. Its totient is φ = 21195488167560.

The previous prime is 21202221330133. The next prime is 21202221330229. The reversal of 21202221330203 is 30203312220212.

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 21202221330203 - 2³⁴ = 21185041461019 is a prime.

It is a super-3 number, since 3×21202221330203³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202221330233) 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, 66647108 + ... + 66964478.

It is an arithmetic number, because the mean of its divisors is an integer number (2651119396200).

Almost surely, 2^{21202221330203} is an apocalyptic number.

21202221330203 is a deficient number, since it is larger than the sum of its proper divisors (6733839397).

21202221330203 is a wasteful number, since it uses less digits than its factorization.

21202221330203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338377.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21202221330203 its reverse (30203312220212), we get a palindrome (51405533550415).

The spelling of 21202221330203 in words is "twenty-one trillion, two hundred two billion, two hundred twenty-one million, three hundred thirty thousand, two hundred three".