221112001100001 has 16 divisors (see below), whose sum is σ = 332707713255360. Its totient is φ = 129386332931520.

The previous prime is 221112001099961. The next prime is 221112001100057. The reversal of 221112001100001 is 100001100211122.

221112001100001 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 221112001100001 - 2⁶ = 221112001099937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221112001100001.

It is not an unprimeable number, because it can be changed into a prime (221112001100401) 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, 115523510590 + ... + 115523512503.

It is an arithmetic number, because the mean of its divisors is an integer number (20794232078460).

Almost surely, 2^{221112001100001} is an apocalyptic number.

It is an amenable number.

221112001100001 is a deficient number, since it is larger than the sum of its proper divisors (111595712155359).

221112001100001 is a wasteful number, since it uses less digits than its factorization.

221112001100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231047023136.

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

Adding to 221112001100001 its reverse (100001100211122), we get a palindrome (321113101311123).

The spelling of 221112001100001 in words is "two hundred twenty-one trillion, one hundred twelve billion, one million, one hundred thousand, one".