21102100202201 has 8 divisors (see below), whose sum is σ = 22214446387200. Its totient is φ = 20005992647872.

The previous prime is 21102100202179. The next prime is 21102100202291. The reversal of 21102100202201 is 10220200120112.

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 21102100202201 - 2⁶ = 21102100202137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21102100202291) 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, 4059655001 + ... + 4059660198.

It is an arithmetic number, because the mean of its divisors is an integer number (2776805798400).

Almost surely, 2^{21102100202201} is an apocalyptic number.

It is an amenable number.

21102100202201 is a deficient number, since it is larger than the sum of its proper divisors (1112346184999).

21102100202201 is a wasteful number, since it uses less digits than its factorization.

21102100202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8119315335.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21102100202201 its reverse (10220200120112), we get a palindrome (31322300322313).

The spelling of 21102100202201 in words is "twenty-one trillion, one hundred two billion, one hundred million, two hundred two thousand, two hundred one".