111200202111001 has 2 divisors, whose sum is σ = 111200202111002. Its totient is φ = 111200202111000.

The previous prime is 111200202110971. The next prime is 111200202111029. The reversal of 111200202111001 is 100111202002111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91383103421401 + 19817098689600 = 9559451^2 + 4451640^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200202111001 - 2⁷ = 111200202110873 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200202111071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600101055500 + 55600101055501.

It is an arithmetic number, because the mean of its divisors is an integer number (55600101055501).

Almost surely, 2^{111200202111001} is an apocalyptic number.

It is an amenable number.

111200202111001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200202111001 is an equidigital number, since it uses as much as digits as its factorization.

111200202111001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111200202111001 its reverse (100111202002111), we get a palindrome (211311404113112).

The spelling of 111200202111001 in words is "one hundred eleven trillion, two hundred billion, two hundred two million, one hundred eleven thousand, one".