221110213323223 has 24 divisors (see below), whose sum is σ = 263236476531600. Its totient is φ = 185083868027520.

The previous prime is 221110213323199. The next prime is 221110213323277. The reversal of 221110213323223 is 322323312011122.

It is not a de Polignac number, because 221110213323223 - 2¹³ = 221110213315031 is a prime.

It is a super-2 number, since 2×221110213323223² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221110213323191 and 221110213323200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110213323283) 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, 3353013 + ... + 21294673.

It is an arithmetic number, because the mean of its divisors is an integer number (10968186522150).

Almost surely, 2^{221110213323223} is an apocalyptic number.

221110213323223 is a deficient number, since it is larger than the sum of its proper divisors (42126263208377).

221110213323223 is a wasteful number, since it uses less digits than its factorization.

221110213323223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17947567 (or 17947560 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 221110213323223 its reverse (322323312011122), we get a palindrome (543433525334345).

The spelling of 221110213323223 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred thirteen million, three hundred twenty-three thousand, two hundred twenty-three".