223223122221 has 16 divisors (see below), whose sum is σ = 325202769408. Its totient is φ = 135072327600.

The previous prime is 223223122217. The next prime is 223223122279. The reversal of 223223122221 is 122221322322.

223223122221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223223122221 - 2² = 223223122217 is a prime.

It is a super-3 number, since 3×223223122221³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223223122191 and 223223122200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223223122921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5339191 + ... + 5380836.

It is an arithmetic number, because the mean of its divisors is an integer number (20325173088).

Almost surely, 2^223223122221 is an apocalyptic number.

It is an amenable number.

223223122221 is a deficient number, since it is larger than the sum of its proper divisors (101979647187).

223223122221 is a wasteful number, since it uses less digits than its factorization.

223223122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10720672.

The product of its digits is 2304, while the sum is 24.

Adding to 223223122221 its reverse (122221322322), we get a palindrome (345444444543).

The spelling of 223223122221 in words is "two hundred twenty-three billion, two hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty-one".