21202310033 has 16 divisors (see below), whose sum is σ = 22449813120. Its totient is φ = 20001091200.

The previous prime is 21202310029. The next prime is 21202310047. The reversal of 21202310033 is 33001320212.

It is a cyclic number.

It is not a de Polignac number, because 21202310033 - 2² = 21202310029 is a prime.

It is a super-3 number, since 3×21202310033³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21202309993 and 21202310020.

It is not an unprimeable number, because it can be changed into a prime (21202310093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75716 + ... + 219402.

It is an arithmetic number, because the mean of its divisors is an integer number (1403113320).

Almost surely, 2^21202310033 is an apocalyptic number.

It is an amenable number.

21202310033 is a deficient number, since it is larger than the sum of its proper divisors (1247503087).

21202310033 is a wasteful number, since it uses less digits than its factorization.

21202310033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143848.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21202310033 its reverse (33001320212), we get a palindrome (54203630245).

The spelling of 21202310033 in words is "twenty-one billion, two hundred two million, three hundred ten thousand, thirty-three".