201112111222201 has 2 divisors, whose sum is σ = 201112111222202. Its totient is φ = 201112111222200.

The previous prime is 201112111222189. The next prime is 201112111222207. The reversal of 201112111222201 is 102222111211102.

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., 193973724228025 + 7138386994176 = 13927445^2 + 2671776^2 .

It is a cyclic number.

It is not a de Polignac number, because 201112111222201 - 2²¹ = 201112109125049 is a prime.

It is not a weakly prime, because it can be changed into another prime (201112111222207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100556055611100 + 100556055611101.

It is an arithmetic number, because the mean of its divisors is an integer number (100556055611101).

Almost surely, 2^{201112111222201} is an apocalyptic number.

It is an amenable number.

201112111222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

201112111222201 is an equidigital number, since it uses as much as digits as its factorization.

201112111222201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201112111222201 its reverse (102222111211102), we get a palindrome (303334222433303).

The spelling of 201112111222201 in words is "two hundred one trillion, one hundred twelve billion, one hundred eleven million, two hundred twenty-two thousand, two hundred one".