201222110111112 has 128 divisors (see below), whose sum is σ = 564507957888000. Its totient is φ = 66407173747200.

The previous prime is 201222110111081. The next prime is 201222110111129. The reversal of 201222110111112 is 211111011222102.

It is a happy number.

201222110111112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561779308 + ... + 562137380.

It is an arithmetic number, because the mean of its divisors is an integer number (4410218421000).

Almost surely, 2^{201222110111112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222110111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282253978944000).

201222110111112 is an abundant number, since it is smaller than the sum of its proper divisors (363285847776888).

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

201222110111112 is a wasteful number, since it uses less digits than its factorization.

201222110111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383948 (or 383938 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 201222110111112 its reverse (211111011222102), we get a palindrome (412333121333214).

The spelling of 201222110111112 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred ten million, one hundred eleven thousand, one hundred twelve".