201111222110000 has 200 divisors, whose sum is σ = 490841402472960. Its totient is φ = 79795279872000.

The previous prime is 201111222109879. The next prime is 201111222110003. The reversal of 201111222110000 is 11222111102.

It is a tau number, because it is divible by the number of its divisors (200).

It is not an unprimeable number, because it can be changed into a prime (201111222110003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8047977506 + ... + 8048002494.

Almost surely, 2^{201111222110000} is an apocalyptic number.

201111222110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201111222110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245420701236480).

201111222110000 is an abundant number, since it is smaller than the sum of its proper divisors (289730180362960).

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

201111222110000 is a wasteful number, since it uses less digits than its factorization.

201111222110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31481 (or 31460 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201111222110000 its reverse (11222111102), we get a palindrome (201122444221102).

The spelling of 201111222110000 in words is "two hundred one trillion, one hundred eleven billion, two hundred twenty-two million, one hundred ten thousand".