221000001103 has 32 divisors (see below), whose sum is σ = 256660275200. Its totient is φ = 186393239424.

The previous prime is 221000001059. The next prime is 221000001127. The reversal of 221000001103 is 301100000122.

221000001103 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 221000001103 - 2⁹ = 221000000591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221000001103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000001163) 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 31 ways as a sum of consecutive naturals, for example, 56389978 + ... + 56393896.

It is an arithmetic number, because the mean of its divisors is an integer number (8020633600).

Almost surely, 2^221000001103 is an apocalyptic number.

221000001103 is a deficient number, since it is larger than the sum of its proper divisors (35660274097).

221000001103 is a wasteful number, since it uses less digits than its factorization.

221000001103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 221000001103 its reverse (301100000122), we get a palindrome (522100001225).

The spelling of 221000001103 in words is "two hundred twenty-one billion, one thousand, one hundred three".