221001110012003 has 4 divisors (see below), whose sum is σ = 221001163206168. Its totient is φ = 221001056817840.

The previous prime is 221001110011973. The next prime is 221001110012027. The reversal of 221001110012003 is 300210011100122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221001110012003 - 2¹⁰ = 221001110010979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001110012503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19783301 + ... + 28868342.

It is an arithmetic number, because the mean of its divisors is an integer number (55250290801542).

Almost surely, 2^{221001110012003} is an apocalyptic number.

221001110012003 is a deficient number, since it is larger than the sum of its proper divisors (53194165).

221001110012003 is an equidigital number, since it uses as much as digits as its factorization.

221001110012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53194164.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221001110012003 its reverse (300210011100122), we get a palindrome (521211121112125).

The spelling of 221001110012003 in words is "two hundred twenty-one trillion, one billion, one hundred ten million, twelve thousand, three".