223022123221 has 4 divisors (see below), whose sum is σ = 228461687244. Its totient is φ = 217582559200.

The previous prime is 223022123167. The next prime is 223022123237. The reversal of 223022123221 is 122321220322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123474932100 + 99547191121 = 351390^2 + 315511^2 .

It is a cyclic number.

It is not a de Polignac number, because 223022123221 - 2¹⁵ = 223022090453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223022123192 and 223022123201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223022123251) 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, 2719781950 + ... + 2719782031.

It is an arithmetic number, because the mean of its divisors is an integer number (57115421811).

Almost surely, 2^223022123221 is an apocalyptic number.

It is an amenable number.

223022123221 is a deficient number, since it is larger than the sum of its proper divisors (5439564023).

223022123221 is an equidigital number, since it uses as much as digits as its factorization.

223022123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439564022.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 223022123221 its reverse (122321220322), we get a palindrome (345343343543).

The spelling of 223022123221 in words is "two hundred twenty-three billion, twenty-two million, one hundred twenty-three thousand, two hundred twenty-one".