21200001032101 has 8 divisors (see below), whose sum is σ = 21281160910464. Its totient is φ = 21118924440720.

The previous prime is 21200001032099. The next prime is 21200001032207. The reversal of 21200001032101 is 10123010000212.

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 21200001032101 - 2¹ = 21200001032099 is a prime.

It is a super-3 number, since 3×21200001032101³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200001032501) 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, 20311665 + ... + 21329878.

It is an arithmetic number, because the mean of its divisors is an integer number (2660145113808).

Almost surely, 2^{21200001032101} is an apocalyptic number.

It is an amenable number.

21200001032101 is a deficient number, since it is larger than the sum of its proper divisors (81159878363).

21200001032101 is a wasteful number, since it uses less digits than its factorization.

21200001032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41643491.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21200001032101 its reverse (10123010000212), we get a palindrome (31323011032313).

The spelling of 21200001032101 in words is "twenty-one trillion, two hundred billion, one million, thirty-two thousand, one hundred one".