1111201122223 has 2 divisors, whose sum is σ = 1111201122224. Its totient is φ = 1111201122222.

The previous prime is 1111201122197. The next prime is 1111201122247. The reversal of 1111201122223 is 3222211021111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3222211021111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111201122223 - 2¹³ = 1111201114031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111201122223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111201122263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555600561111 + 555600561112.

It is an arithmetic number, because the mean of its divisors is an integer number (555600561112).

Almost surely, 2^{1111201122223} is an apocalyptic number.

1111201122223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111201122223 is an equidigital number, since it uses as much as digits as its factorization.

1111201122223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1111201122223 its reverse (3222211021111), we get a palindrome (4333412143334).

The spelling of 1111201122223 in words is "one trillion, one hundred eleven billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-three".