21302122220333 has 16 divisors (see below), whose sum is σ = 22253775833856. Its totient is φ = 20352594936960.

The previous prime is 21302122220221. The next prime is 21302122220339. The reversal of 21302122220333 is 33302222120312.

It is a cyclic number.

It is not a de Polignac number, because 21302122220333 - 2²⁰ = 21302121171757 is a prime.

It is a super-2 number, since 2×21302122220333² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302122220339) 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, 344591135 + ... + 344652947.

It is an arithmetic number, because the mean of its divisors is an integer number (1390860989616).

Almost surely, 2^{21302122220333} is an apocalyptic number.

21302122220333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21302122220333 is a deficient number, since it is larger than the sum of its proper divisors (951653613523).

21302122220333 is a wasteful number, since it uses less digits than its factorization.

21302122220333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78764.

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

Adding to 21302122220333 its reverse (33302222120312), we get a palindrome (54604344340645).

The spelling of 21302122220333 in words is "twenty-one trillion, three hundred two billion, one hundred twenty-two million, two hundred twenty thousand, three hundred thirty-three".