221001210011201 has 8 divisors (see below), whose sum is σ = 221309528993280. Its totient is φ = 220692902921568.

The previous prime is 221001210011191. The next prime is 221001210011209. The reversal of 221001210011201 is 102110012100122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221001210011201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001210011209) 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, 34549520 + ... + 40443438.

It is an arithmetic number, because the mean of its divisors is an integer number (27663691124160).

Almost surely, 2^{221001210011201} is an apocalyptic number.

It is an amenable number.

221001210011201 is a deficient number, since it is larger than the sum of its proper divisors (308318982079).

221001210011201 is an equidigital number, since it uses as much as digits as its factorization.

221001210011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946223.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221001210011201 its reverse (102110012100122), we get a palindrome (323111222111323).

The spelling of 221001210011201 in words is "two hundred twenty-one trillion, one billion, two hundred ten million, eleven thousand, two hundred one".