21220010300333 has 8 divisors (see below), whose sum is σ = 22896181208376. Its totient is φ = 19550105452800.

The previous prime is 21220010300309. The next prime is 21220010300351. The reversal of 21220010300333 is 33300301002212.

It can be written as a sum of positive squares in 4 ways, for example, as 1054180653289 + 20165829647044 = 1026733^2 + 4490638^2 .

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

It is not a de Polignac number, because 21220010300333 - 2⁸ = 21220010300077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220010300033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566508088 + ... + 1566521633.

It is an arithmetic number, because the mean of its divisors is an integer number (2862022651047).

Almost surely, 2^{21220010300333} is an apocalyptic number.

It is an amenable number.

21220010300333 is a deficient number, since it is larger than the sum of its proper divisors (1676170908043).

21220010300333 is a wasteful number, since it uses less digits than its factorization.

21220010300333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133030255.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21220010300333 its reverse (33300301002212), we get a palindrome (54520311302545).

The spelling of 21220010300333 in words is "twenty-one trillion, two hundred twenty billion, ten million, three hundred thousand, three hundred thirty-three".