21001102013333 has 8 divisors (see below), whose sum is σ = 22794654640128. Its totient is φ = 19232989849584.

The previous prime is 21001102013299. The next prime is 21001102013351. The reversal of 21001102013333 is 33331020110012.

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 21001102013333 - 2¹⁶ = 21001101947797 is a prime.

It is a super-2 number, since 2×21001102013333² (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 (21001102043333) 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, 6360114041 + ... + 6360117342.

It is an arithmetic number, because the mean of its divisors is an integer number (2849331830016).

Almost surely, 2^{21001102013333} is an apocalyptic number.

It is an amenable number.

21001102013333 is a deficient number, since it is larger than the sum of its proper divisors (1793552626795).

21001102013333 is a wasteful number, since it uses less digits than its factorization.

21001102013333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12720231523.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21001102013333 its reverse (33331020110012), we get a palindrome (54332122123345).

The spelling of 21001102013333 in words is "twenty-one trillion, one billion, one hundred two million, thirteen thousand, three hundred thirty-three".