221001102201 has 16 divisors (see below), whose sum is σ = 327521361600. Its totient is φ = 131412889920.

The previous prime is 221001102199. The next prime is 221001102209. The reversal of 221001102201 is 102201100122.

It is not a de Polignac number, because 221001102201 - 2¹ = 221001102199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221001102209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63177526 + ... + 63181023.

It is an arithmetic number, because the mean of its divisors is an integer number (20470085100).

Almost surely, 2^221001102201 is an apocalyptic number.

It is an amenable number.

221001102201 is a deficient number, since it is larger than the sum of its proper divisors (106520259399).

221001102201 is a wasteful number, since it uses less digits than its factorization.

221001102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126358616.

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

Adding to 221001102201 its reverse (102201100122), we get a palindrome (323202202323).

The spelling of 221001102201 in words is "two hundred twenty-one billion, one million, one hundred two thousand, two hundred one".