12220222223 has 4 divisors (see below), whose sum is σ = 13331151528. Its totient is φ = 11109292920.

The previous prime is 12220222187. The next prime is 12220222283. The reversal of 12220222223 is 32222202221.

12220222223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12220222223 - 2⁸ = 12220221967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220222195 and 12220222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220222283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555464636 + ... + 555464657.

It is an arithmetic number, because the mean of its divisors is an integer number (3332787882).

Almost surely, 2^12220222223 is an apocalyptic number.

12220222223 is a deficient number, since it is larger than the sum of its proper divisors (1110929305).

12220222223 is a wasteful number, since it uses less digits than its factorization.

12220222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110929304.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12220222223 its reverse (32222202221), we get a palindrome (44442424444).

The spelling of 12220222223 in words is "twelve billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-three".