11011222011187 has 2 divisors, whose sum is σ = 11011222011188. Its totient is φ = 11011222011186.

The previous prime is 11011222011169. The next prime is 11011222011203. The reversal of 11011222011187 is 78111022211011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011222011187 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011222011157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505611005593 + 5505611005594.

It is an arithmetic number, because the mean of its divisors is an integer number (5505611005594).

Almost surely, 2^{11011222011187} is an apocalyptic number.

11011222011187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011222011187 is an equidigital number, since it uses as much as digits as its factorization.

11011222011187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 28.

Adding to 11011222011187 its reverse (78111022211011), we get a palindrome (89122244222198).

The spelling of 11011222011187 in words is "eleven trillion, eleven billion, two hundred twenty-two million, eleven thousand, one hundred eighty-seven".