201122220200122 has 32 divisors (see below), whose sum is σ = 336930972068880. Its totient is φ = 89401252684800.

The previous prime is 201122220200107. The next prime is 201122220200129. The reversal of 201122220200122 is 221002022221102.

It can be written as a sum of positive squares in 8 ways, for example, as 99183493546281 + 101938726653841 = 9959091^2 + 10096471^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201122220200122.

It is not an unprimeable number, because it can be changed into a prime (201122220200129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332291593 + ... + 332896300.

Almost surely, 2^{201122220200122} is an apocalyptic number.

201122220200122 is a deficient number, since it is larger than the sum of its proper divisors (135808751868758).

201122220200122 is a wasteful number, since it uses less digits than its factorization.

201122220200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665188338.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201122220200122 its reverse (221002022221102), we get a palindrome (422124242421224).

The spelling of 201122220200122 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred thousand, one hundred twenty-two".