221102101222001 has 16 divisors (see below), whose sum is σ = 228271488614400. Its totient is φ = 213935033768400.

The previous prime is 221102101221979. The next prime is 221102101222003. The reversal of 221102101222001 is 100222101201122.

It is a cyclic number.

It is not a de Polignac number, because 221102101222001 - 2²⁶ = 221102034113137 is a prime.

It is a super-2 number, since 2×221102101222001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221102101222003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9282581870 + ... + 9282605688.

It is an arithmetic number, because the mean of its divisors is an integer number (14266968038400).

Almost surely, 2^{221102101222001} is an apocalyptic number.

It is an amenable number.

221102101222001 is a deficient number, since it is larger than the sum of its proper divisors (7169387392399).

221102101222001 is a wasteful number, since it uses less digits than its factorization.

221102101222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59900.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221102101222001 its reverse (100222101201122), we get a palindrome (321324202423123).

The spelling of 221102101222001 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred one million, two hundred twenty-two thousand, one".