1111211224213 has 2 divisors, whose sum is σ = 1111211224214. Its totient is φ = 1111211224212.

The previous prime is 1111211224169. The next prime is 1111211224217. The reversal of 1111211224213 is 3124221121111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721288408369 + 389922815844 = 849287^2 + 624438^2 .

It is an emirp because it is prime and its reverse (3124221121111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111211224213 - 2¹⁷ = 1111211093141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111211224217) 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, 555605612106 + 555605612107.

It is an arithmetic number, because the mean of its divisors is an integer number (555605612107).

Almost surely, 2^{1111211224213} is an apocalyptic number.

It is an amenable number.

1111211224213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111211224213 is an equidigital number, since it uses as much as digits as its factorization.

1111211224213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 22.

Adding to 1111211224213 its reverse (3124221121111), we get a palindrome (4235432345324).

The spelling of 1111211224213 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred twenty-four thousand, two hundred thirteen".