21200101020201 has 8 divisors (see below), whose sum is σ = 28266876431424. Its totient is φ = 14133363144560.

The previous prime is 21200101020169. The next prime is 21200101020221. The reversal of 21200101020201 is 10202010100212.

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 21200101020201 - 2⁵ = 21200101020169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200101020221) 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, 8038470 + ... + 10344911.

It is an arithmetic number, because the mean of its divisors is an integer number (3533359553928).

Almost surely, 2^{21200101020201} is an apocalyptic number.

It is an amenable number.

21200101020201 is a deficient number, since it is larger than the sum of its proper divisors (7066775411223).

21200101020201 is a wasteful number, since it uses less digits than its factorization.

21200101020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18767791.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21200101020201 its reverse (10202010100212), we get a palindrome (31402111120413).

The spelling of 21200101020201 in words is "twenty-one trillion, two hundred billion, one hundred one million, twenty thousand, two hundred one".