21033321021301 has 8 divisors (see below), whose sum is σ = 21766376194200. Its totient is φ = 20300783731200.

The previous prime is 21033321021241. The next prime is 21033321021329. The reversal of 21033321021301 is 10312012333012.

It can be written as a sum of positive squares in 4 ways, for example, as 83943472900 + 20949377548401 = 289730^2 + 4577049^2 .

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 21033321021301 - 2¹³ = 21033321013109 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 (21033321021001) 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, 129388056 + ... + 129550513.

It is an arithmetic number, because the mean of its divisors is an integer number (2720797024275).

Almost surely, 2^{21033321021301} is an apocalyptic number.

It is an amenable number.

21033321021301 is a deficient number, since it is larger than the sum of its proper divisors (733055172899).

21033321021301 is a wasteful number, since it uses less digits than its factorization.

21033321021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258941399.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21033321021301 its reverse (10312012333012), we get a palindrome (31345333354313).

The spelling of 21033321021301 in words is "twenty-one trillion, thirty-three billion, three hundred twenty-one million, twenty-one thousand, three hundred one".