111200121201011 has 2 divisors, whose sum is σ = 111200121201012. Its totient is φ = 111200121201010.

The previous prime is 111200121200983. The next prime is 111200121201019. The reversal of 111200121201011 is 110102121002111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111200121201011 - 2¹⁸ = 111200120938867 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200121201019) 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, 55600060600505 + 55600060600506.

It is an arithmetic number, because the mean of its divisors is an integer number (55600060600506).

Almost surely, 2^{111200121201011} is an apocalyptic number.

111200121201011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200121201011 is an equidigital number, since it uses as much as digits as its factorization.

111200121201011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111200121201011 its reverse (110102121002111), we get a palindrome (221302242203122).

The spelling of 111200121201011 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-one million, two hundred one thousand, eleven".