221001102102201 has 16 divisors (see below), whose sum is σ = 296824433624064. Its totient is φ = 146255958710144.

The previous prime is 221001102102169. The next prime is 221001102102239. The reversal of 221001102102201 is 102201201100122.

It is a cyclic number.

It is not a de Polignac number, because 221001102102201 - 2⁵ = 221001102102169 is a prime.

It is a super-2 number, since 2×221001102102201² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221001102102241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17675176 + ... + 27466598.

It is an arithmetic number, because the mean of its divisors is an integer number (18551527101504).

Almost surely, 2^{221001102102201} is an apocalyptic number.

It is an amenable number.

221001102102201 is a deficient number, since it is larger than the sum of its proper divisors (75823331521863).

221001102102201 is a wasteful number, since it uses less digits than its factorization.

221001102102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9846480.

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

Adding to 221001102102201 its reverse (102201201100122), we get a palindrome (323202303202323).

The spelling of 221001102102201 in words is "two hundred twenty-one trillion, one billion, one hundred two million, one hundred two thousand, two hundred one".