11121201112247 has 2 divisors, whose sum is σ = 11121201112248. Its totient is φ = 11121201112246.

The previous prime is 11121201112169. The next prime is 11121201112279. The reversal of 11121201112247 is 74221110212111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121201112247 - 2¹⁸ = 11121200850103 is a prime.

It is a super-2 number, since 2×11121201112247² (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 (11121201112547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560600556123 + 5560600556124.

It is an arithmetic number, because the mean of its divisors is an integer number (5560600556124).

Almost surely, 2^{11121201112247} is an apocalyptic number.

11121201112247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121201112247 is an equidigital number, since it uses as much as digits as its factorization.

11121201112247 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 26.

Adding to 11121201112247 its reverse (74221110212111), we get a palindrome (85342311324358).

The spelling of 11121201112247 in words is "eleven trillion, one hundred twenty-one billion, two hundred one million, one hundred twelve thousand, two hundred forty-seven".