1222222110223 has 4 divisors (see below), whose sum is σ = 1223504610768. Its totient is φ = 1220939609680.

The previous prime is 1222222110191. The next prime is 1222222110269. The reversal of 1222222110223 is 3220112222221.

It is a happy number.

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 1222222110223 - 2⁵ = 1222222110191 is a prime.

It is a super-2 number, since 2×1222222110223² (a number of 25 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 = 1222222110194 and 1222222110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222222110023) 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, 641248843 + ... + 641250748.

It is an arithmetic number, because the mean of its divisors is an integer number (305876152692).

Almost surely, 2^{1222222110223} is an apocalyptic number.

1222222110223 is a deficient number, since it is larger than the sum of its proper divisors (1282500545).

1222222110223 is an equidigital number, since it uses as much as digits as its factorization.

1222222110223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282500544.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1222222110223 its reverse (3220112222221), we get a palindrome (4442334332444).

The spelling of 1222222110223 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-three".