201122010001111 has 2 divisors, whose sum is σ = 201122010001112. Its totient is φ = 201122010001110.

The previous prime is 201122010001079. The next prime is 201122010001127. The reversal of 201122010001111 is 111100010221102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201122010001111 - 2⁵ = 201122010001079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201122010001091 and 201122010001100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122010001181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561005000555 + 100561005000556.

It is an arithmetic number, because the mean of its divisors is an integer number (100561005000556).

Almost surely, 2^{201122010001111} is an apocalyptic number.

201122010001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122010001111 is an equidigital number, since it uses as much as digits as its factorization.

201122010001111 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 13.

Adding to 201122010001111 its reverse (111100010221102), we get a palindrome (312222020222213).

The spelling of 201122010001111 in words is "two hundred one trillion, one hundred twenty-two billion, ten million, one thousand, one hundred eleven".