11101110212251 has 2 divisors, whose sum is σ = 11101110212252. Its totient is φ = 11101110212250.

The previous prime is 11101110212141. The next prime is 11101110212263. The reversal of 11101110212251 is 15221201110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101110212251 - 2⁹ = 11101110211739 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101110212281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550555106125 + 5550555106126.

It is an arithmetic number, because the mean of its divisors is an integer number (5550555106126).

Almost surely, 2^{11101110212251} is an apocalyptic number.

11101110212251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101110212251 is an equidigital number, since it uses as much as digits as its factorization.

11101110212251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 19.

Adding to 11101110212251 its reverse (15221201110111), we get a palindrome (26322311322362).

The spelling of 11101110212251 in words is "eleven trillion, one hundred one billion, one hundred ten million, two hundred twelve thousand, two hundred fifty-one".