201122110110 has 128 divisors (see below), whose sum is σ = 510502487040. Its totient is φ = 50608464896.

The previous prime is 201122110081. The next prime is 201122110139. The reversal of 201122110110 is 11011221102.

It is an interprime number because it is at equal distance from previous prime (201122110081) and next prime (201122110139).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28674964 + ... + 28681976.

It is an arithmetic number, because the mean of its divisors is an integer number (3988300680).

Almost surely, 2^201122110110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201122110110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255251243520).

201122110110 is an abundant number, since it is smaller than the sum of its proper divisors (309380376930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201122110110 is a wasteful number, since it uses less digits than its factorization.

201122110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201122110110 its reverse (11011221102), we get a palindrome (212133331212).

The spelling of 201122110110 in words is "two hundred one billion, one hundred twenty-two million, one hundred ten thousand, one hundred ten".