221111030223 has 24 divisors (see below), whose sum is σ = 320307702000. Its totient is φ = 146980915200.

The previous prime is 221111030209. The next prime is 221111030251. The reversal of 221111030223 is 322030111122.

It is not a de Polignac number, because 221111030223 - 2¹⁸ = 221110768079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221111030196 and 221111030205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111030123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5156773 + ... + 5199473.

It is an arithmetic number, because the mean of its divisors is an integer number (13346154250).

Almost surely, 2^221111030223 is an apocalyptic number.

221111030223 is a deficient number, since it is larger than the sum of its proper divisors (99196671777).

221111030223 is a wasteful number, since it uses less digits than its factorization.

221111030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44359 (or 44356 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221111030223 its reverse (322030111122), we get a palindrome (543141141345).

The spelling of 221111030223 in words is "two hundred twenty-one billion, one hundred eleven million, thirty thousand, two hundred twenty-three".