221211311224103 has 16 divisors (see below), whose sum is σ = 228988074223680. Its totient is φ = 213444512176896.

The previous prime is 221211311224093. The next prime is 221211311224157. The reversal of 221211311224103 is 301422113112122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221211311224103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211311224903) 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, 278063726 + ... + 278858132.

It is an arithmetic number, because the mean of its divisors is an integer number (14311754638980).

Almost surely, 2^{221211311224103} is an apocalyptic number.

221211311224103 is a deficient number, since it is larger than the sum of its proper divisors (7776762999577).

221211311224103 is a wasteful number, since it uses less digits than its factorization.

221211311224103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800666.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 221211311224103 its reverse (301422113112122), we get a palindrome (522633424336225).

The spelling of 221211311224103 in words is "two hundred twenty-one trillion, two hundred eleven billion, three hundred eleven million, two hundred twenty-four thousand, one hundred three".