200122201211111 has 2 divisors, whose sum is σ = 200122201211112. Its totient is φ = 200122201211110.

The previous prime is 200122201211063. The next prime is 200122201211167. The reversal of 200122201211111 is 111112102221002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200122201211111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200122201211111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200122201210111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061100605555 + 100061100605556.

It is an arithmetic number, because the mean of its divisors is an integer number (100061100605556).

Almost surely, 2^{200122201211111} is an apocalyptic number.

200122201211111 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122201211111 is an equidigital number, since it uses as much as digits as its factorization.

200122201211111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 200122201211111 its reverse (111112102221002), we get a palindrome (311234303432113).

The spelling of 200122201211111 in words is "two hundred trillion, one hundred twenty-two billion, two hundred one million, two hundred eleven thousand, one hundred eleven".