22211222212243 has 2 divisors, whose sum is σ = 22211222212244. Its totient is φ = 22211222212242.

The previous prime is 22211222212217. The next prime is 22211222212247. The reversal of 22211222212243 is 34221222211222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211222212243 is a prime.

It is not a weakly prime, because it can be changed into another prime (22211222212247) 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, 11105611106121 + 11105611106122.

It is an arithmetic number, because the mean of its divisors is an integer number (11105611106122).

Almost surely, 2^{22211222212243} is an apocalyptic number.

22211222212243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211222212243 is an equidigital number, since it uses as much as digits as its factorization.

22211222212243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 28.

Adding to 22211222212243 its reverse (34221222211222), we get a palindrome (56432444423465).

The spelling of 22211222212243 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, two hundred forty-three".