12122202223 has 4 divisors (see below), whose sum is σ = 12835272960. Its totient is φ = 11409131488.

The previous prime is 12122202193. The next prime is 12122202299. The reversal of 12122202223 is 32220222121.

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

It is a cyclic number.

It is not a de Polignac number, because 12122202223 - 2¹⁷ = 12122071151 is a prime.

It is a super-2 number, since 2×12122202223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122202223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122202523) 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, 356535343 + ... + 356535376.

It is an arithmetic number, because the mean of its divisors is an integer number (3208818240).

Almost surely, 2^12122202223 is an apocalyptic number.

12122202223 is a deficient number, since it is larger than the sum of its proper divisors (713070737).

12122202223 is an equidigital number, since it uses as much as digits as its factorization.

12122202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713070736.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12122202223 its reverse (32220222121), we get a palindrome (44342424344).

The spelling of 12122202223 in words is "twelve billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-three".