1111210011217 has 2 divisors, whose sum is σ = 1111210011218. Its totient is φ = 1111210011216.

The previous prime is 1111210011193. The next prime is 1111210011239. The reversal of 1111210011217 is 7121100121111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673976963521 + 437233047696 = 820961^2 + 661236^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111210011217 - 2¹⁵ = 1111209978449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111210011194 and 1111210011203.

It is not a weakly prime, because it can be changed into another prime (1111210011517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605005608 + 555605005609.

It is an arithmetic number, because the mean of its divisors is an integer number (555605005609).

Almost surely, 2^{1111210011217} is an apocalyptic number.

It is an amenable number.

1111210011217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111210011217 is an equidigital number, since it uses as much as digits as its factorization.

1111210011217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 19.

Adding to 1111210011217 its reverse (7121100121111), we get a palindrome (8232310132328).

The spelling of 1111210011217 in words is "one trillion, one hundred eleven billion, two hundred ten million, eleven thousand, two hundred seventeen".