111200101011121 has 2 divisors, whose sum is σ = 111200101011122. Its totient is φ = 111200101011120.

The previous prime is 111200101011037. The next prime is 111200101011151. The reversal of 111200101011121 is 121110101002111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83996950050225 + 27203150960896 = 9164985^2 + 5215664^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200101011121 - 2⁷ = 111200101010993 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200101011151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600050505560 + 55600050505561.

It is an arithmetic number, because the mean of its divisors is an integer number (55600050505561).

Almost surely, 2^{111200101011121} is an apocalyptic number.

It is an amenable number.

111200101011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200101011121 is an equidigital number, since it uses as much as digits as its factorization.

111200101011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111200101011121 its reverse (121110101002111), we get a palindrome (232310202013232).

The spelling of 111200101011121 in words is "one hundred eleven trillion, two hundred billion, one hundred one million, eleven thousand, one hundred twenty-one".