201111011202222 has 192 divisors, whose sum is σ = 487454151315456. Its totient is φ = 59407323655680.

The previous prime is 201111011202209. The next prime is 201111011202247. The reversal of 201111011202222 is 222202110111102.

201111011202222 is digitally balanced in base 2, 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 a junction number, because it is equal to n+sod(n) for n = 201111011202195 and 201111011202204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1131993403 + ... + 1132171049.

It is an arithmetic number, because the mean of its divisors is an integer number (2538823704768).

Almost surely, 2^{201111011202222} is an apocalyptic number.

201111011202222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201111011202222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243727075657728).

201111011202222 is an abundant number, since it is smaller than the sum of its proper divisors (286343140113234).

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

201111011202222 is a wasteful number, since it uses less digits than its factorization.

201111011202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178415 (or 178412 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201111011202222 its reverse (222202110111102), we get a palindrome (423313121313324).

The spelling of 201111011202222 in words is "two hundred one trillion, one hundred eleven billion, eleven million, two hundred two thousand, two hundred twenty-two".