221001110122 has 16 divisors (see below), whose sum is σ = 358149722112. Its totient is φ = 101672532720.

The previous prime is 221001110119. The next prime is 221001110129. The reversal of 221001110122 is 221011100122.

221001110122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (221001110129) 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 7 ways as a sum of consecutive naturals, for example, 13657578 + ... + 13673749.

It is an arithmetic number, because the mean of its divisors is an integer number (22384357632).

Almost surely, 2^221001110122 is an apocalyptic number.

221001110122 is a deficient number, since it is larger than the sum of its proper divisors (137148611990).

221001110122 is a wasteful number, since it uses less digits than its factorization.

221001110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27331653.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221001110122 its reverse (221011100122), we get a palindrome (442012210244).

The spelling of 221001110122 in words is "two hundred twenty-one billion, one million, one hundred ten thousand, one hundred twenty-two".