201122000020111 has 2 divisors, whose sum is σ = 201122000020112. Its totient is φ = 201122000020110.

The previous prime is 201122000020021. The next prime is 201122000020211. The reversal of 201122000020111 is 111020000221102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201122000020111 - 2⁹ = 201122000019599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201122000020091 and 201122000020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122000020211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561000010055 + 100561000010056.

It is an arithmetic number, because the mean of its divisors is an integer number (100561000010056).

Almost surely, 2^{201122000020111} is an apocalyptic number.

201122000020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122000020111 is an equidigital number, since it uses as much as digits as its factorization.

201122000020111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201122000020111 its reverse (111020000221102), we get a palindrome (312142000241213).

The spelling of 201122000020111 in words is "two hundred one trillion, one hundred twenty-two billion, twenty thousand, one hundred eleven".