2212221121223 has 2 divisors, whose sum is σ = 2212221121224. Its totient is φ = 2212221121222.

The previous prime is 2212221121183. The next prime is 2212221121261. The reversal of 2212221121223 is 3221211222122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212221121223 - 2¹⁰ = 2212221120199 is a prime.

It is a super-2 number, since 2×2212221121223² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212221127223) 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 as a sum of consecutive naturals, namely, 1106110560611 + 1106110560612.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110560612).

Almost surely, 2^{2212221121223} is an apocalyptic number.

2212221121223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212221121223 is an equidigital number, since it uses as much as digits as its factorization.

2212221121223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 23.

Adding to 2212221121223 its reverse (3221211222122), we get a palindrome (5433432343345).

The spelling of 2212221121223 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-three".