21002122030333 has 8 divisors (see below), whose sum is σ = 21051419187800. Its totient is φ = 20952880296768.

The previous prime is 21002122030273. The next prime is 21002122030399. The reversal of 21002122030333 is 33303022120012.

It can be written as a sum of positive squares in 4 ways, for example, as 4205542750564 + 16796579279769 = 2050742^2 + 4098363^2 .

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 21002122030333 - 2¹⁷ = 21002121899261 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 (21002122030633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13097166 + ... + 14613007.

It is an arithmetic number, because the mean of its divisors is an integer number (2631427398475).

Almost surely, 2^{21002122030333} is an apocalyptic number.

It is an amenable number.

21002122030333 is a deficient number, since it is larger than the sum of its proper divisors (49297157467).

21002122030333 is a wasteful number, since it uses less digits than its factorization.

21002122030333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27711951.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21002122030333 its reverse (33303022120012), we get a palindrome (54305144150345).

The spelling of 21002122030333 in words is "twenty-one trillion, two billion, one hundred twenty-two million, thirty thousand, three hundred thirty-three".