221111200101 has 16 divisors (see below), whose sum is σ = 323664810048. Its totient is φ = 133153238400.

The previous prime is 221111200099. The next prime is 221111200117. The reversal of 221111200101 is 101002111122.

221111200101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221111200101 - 2¹ = 221111200099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111200181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21333480 + ... + 21343841.

It is an arithmetic number, because the mean of its divisors is an integer number (20229050628).

Almost surely, 2^221111200101 is an apocalyptic number.

It is an amenable number.

221111200101 is a deficient number, since it is larger than the sum of its proper divisors (102553609947).

221111200101 is a wasteful number, since it uses less digits than its factorization.

221111200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42677492.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221111200101 its reverse (101002111122), we get a palindrome (322113311223).

The spelling of 221111200101 in words is "two hundred twenty-one billion, one hundred eleven million, two hundred thousand, one hundred one".