21201012210201 has 8 divisors (see below), whose sum is σ = 28375499232960. Its totient is φ = 14080266663792.

The previous prime is 21201012210163. The next prime is 21201012210227. The reversal of 21201012210201 is 10201221010212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21201012210201 - 2¹⁹ = 21201011685913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21201012210401) 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, 13435368166 + ... + 13435369743.

It is an arithmetic number, because the mean of its divisors is an integer number (3546937404120).

Almost surely, 2^{21201012210201} is an apocalyptic number.

It is an amenable number.

21201012210201 is a deficient number, since it is larger than the sum of its proper divisors (7174487022759).

21201012210201 is a wasteful number, since it uses less digits than its factorization.

21201012210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26870738175.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21201012210201 its reverse (10201221010212), we get a palindrome (31402233220413).

The spelling of 21201012210201 in words is "twenty-one trillion, two hundred one billion, twelve million, two hundred ten thousand, two hundred one".