11121201111847 has 2 divisors, whose sum is σ = 11121201111848. Its totient is φ = 11121201111846.

The previous prime is 11121201111733. The next prime is 11121201111857. The reversal of 11121201111847 is 74811110212111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121201111847 is a prime.

It is a super-2 number, since 2×11121201111847² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121201111857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560600555923 + 5560600555924.

It is an arithmetic number, because the mean of its divisors is an integer number (5560600555924).

Almost surely, 2^{11121201111847} is an apocalyptic number.

11121201111847 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121201111847 is an equidigital number, since it uses as much as digits as its factorization.

11121201111847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 31.

Adding to 11121201111847 its reverse (74811110212111), we get a palindrome (85932311323958).

The spelling of 11121201111847 in words is "eleven trillion, one hundred twenty-one billion, two hundred one million, one hundred eleven thousand, eight hundred forty-seven".