11011101121211 has 2 divisors, whose sum is σ = 11011101121212. Its totient is φ = 11011101121210.

The previous prime is 11011101121201. The next prime is 11011101121301. The reversal of 11011101121211 is 11212110111011.

11011101121211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011101121211 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011101121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505550560605 + 5505550560606.

It is an arithmetic number, because the mean of its divisors is an integer number (5505550560606).

Almost surely, 2^{11011101121211} is an apocalyptic number.

11011101121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011101121211 is an equidigital number, since it uses as much as digits as its factorization.

11011101121211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11011101121211 its reverse (11212110111011), we get a palindrome (22223211232222).

The spelling of 11011101121211 in words is "eleven trillion, eleven billion, one hundred one million, one hundred twenty-one thousand, two hundred eleven".