221111000200101 has 16 divisors (see below), whose sum is σ = 321799466433600. Its totient is φ = 133930222561920.

The previous prime is 221111000200087. The next prime is 221111000200117. The reversal of 221111000200101 is 101002000111122.

It is not a de Polignac number, because 221111000200101 - 2¹⁰ = 221111000199077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111000200201) 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, 1911046926 + ... + 1911162623.

It is an arithmetic number, because the mean of its divisors is an integer number (20112466652100).

Almost surely, 2^{221111000200101} is an apocalyptic number.

It is an amenable number.

221111000200101 is a deficient number, since it is larger than the sum of its proper divisors (100688466233499).

221111000200101 is a wasteful number, since it uses less digits than its factorization.

221111000200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822211316.

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

Adding to 221111000200101 its reverse (101002000111122), we get a palindrome (322113000311223).

The spelling of 221111000200101 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred thousand, one hundred one".