21202132203233 has 48 divisors (see below), whose sum is σ = 23763871141200. Its totient is φ = 18848244989952.

The previous prime is 21202132203193. The next prime is 21202132203247. The reversal of 21202132203233 is 33230223120212.

It can be written as a sum of positive squares in 8 ways, for example, as 1145599886929 + 20056532316304 = 1070327^2 + 4478452^2 .

It is not a de Polignac number, because 21202132203233 - 2²⁰ = 21202131154657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21202132203533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5502757535 + ... + 5502761387.

It is an arithmetic number, because the mean of its divisors is an integer number (495080648775).

Almost surely, 2^{21202132203233} is an apocalyptic number.

It is an amenable number.

21202132203233 is a deficient number, since it is larger than the sum of its proper divisors (2561738937967).

21202132203233 is a wasteful number, since it uses less digits than its factorization.

21202132203233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6354 (or 6335 counting only the distinct ones).

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

Adding to 21202132203233 its reverse (33230223120212), we get a palindrome (54432355323445).

The spelling of 21202132203233 in words is "twenty-one trillion, two hundred two billion, one hundred thirty-two million, two hundred three thousand, two hundred thirty-three".