11201122187 has 2 divisors, whose sum is σ = 11201122188. Its totient is φ = 11201122186.

The previous prime is 11201122091. The next prime is 11201122217. The reversal of 11201122187 is 78122110211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11201122187 - 2²⁸ = 10932686731 is a prime.

It is not a weakly prime, because it can be changed into another prime (11201112187) 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, 5600561093 + 5600561094.

It is an arithmetic number, because the mean of its divisors is an integer number (5600561094).

Almost surely, 2^11201122187 is an apocalyptic number.

11201122187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201122187 is an equidigital number, since it uses as much as digits as its factorization.

11201122187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 11201122187 its reverse (78122110211), we get a palindrome (89323232398).

The spelling of 11201122187 in words is "eleven billion, two hundred one million, one hundred twenty-two thousand, one hundred eighty-seven".