221112211003 has 4 divisors (see below), whose sum is σ = 224226467568. Its totient is φ = 217997954440.

The previous prime is 221112210997. The next prime is 221112211027. The reversal of 221112211003 is 300112211122.

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 221112211003 - 2⁹ = 221112210491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221112211093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557128176 + ... + 1557128317.

It is an arithmetic number, because the mean of its divisors is an integer number (56056616892).

Almost surely, 2^221112211003 is an apocalyptic number.

221112211003 is a deficient number, since it is larger than the sum of its proper divisors (3114256565).

221112211003 is an equidigital number, since it uses as much as digits as its factorization.

221112211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114256564.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221112211003 its reverse (300112211122), we get a palindrome (521224422125).

The spelling of 221112211003 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, three".