21321100133101 has 8 divisors (see below), whose sum is σ = 21721778907200. Its totient is φ = 20923356735072.

The previous prime is 21321100133071. The next prime is 21321100133131. The reversal of 21321100133101 is 10133100112312.

It is an interprime number because it is at equal distance from previous prime (21321100133071) and next prime (21321100133131).

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 21321100133101 - 2²⁷ = 21320965915373 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 (21321100133131) 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, 733829355 + ... + 733858408.

It is an arithmetic number, because the mean of its divisors is an integer number (2715222363400).

Almost surely, 2^{21321100133101} is an apocalyptic number.

It is an amenable number.

21321100133101 is a deficient number, since it is larger than the sum of its proper divisors (400678774099).

21321100133101 is a wasteful number, since it uses less digits than its factorization.

21321100133101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467688035.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21321100133101 its reverse (10133100112312), we get a palindrome (31454200245413).

The spelling of 21321100133101 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred million, one hundred thirty-three thousand, one hundred one".