1111012221223 has 2 divisors, whose sum is σ = 1111012221224. Its totient is φ = 1111012221222.

The previous prime is 1111012221181. The next prime is 1111012221239. The reversal of 1111012221223 is 3221222101111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111012221223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111012221223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111012221023) 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, 555506110611 + 555506110612.

It is an arithmetic number, because the mean of its divisors is an integer number (555506110612).

Almost surely, 2^{1111012221223} is an apocalyptic number.

1111012221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111012221223 is an equidigital number, since it uses as much as digits as its factorization.

1111012221223 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 1111012221223 its reverse (3221222101111), we get a palindrome (4332234322334).

The spelling of 1111012221223 in words is "one trillion, one hundred eleven billion, twelve million, two hundred twenty-one thousand, two hundred twenty-three".