210201100221 has 8 divisors (see below), whose sum is σ = 320306438464. Its totient is φ = 120114914400.

The previous prime is 210201100159. The next prime is 210201100237. The reversal of 210201100221 is 122001102012.

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

It is not a de Polignac number, because 210201100221 - 2⁹ = 210201099709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210201100197 and 210201100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201100321) 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, 5004788080 + ... + 5004788121.

It is an arithmetic number, because the mean of its divisors is an integer number (40038304808).

Almost surely, 2^210201100221 is an apocalyptic number.

210201100221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210201100221 is a deficient number, since it is larger than the sum of its proper divisors (110105338243).

210201100221 is a wasteful number, since it uses less digits than its factorization.

210201100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009576211.

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

Adding to 210201100221 its reverse (122001102012), we get a palindrome (332202202233).

The spelling of 210201100221 in words is "two hundred ten billion, two hundred one million, one hundred thousand, two hundred twenty-one".