201222022111110 has 768 divisors, whose sum is σ = 759403251210240. Its totient is φ = 35576416788480.

The previous prime is 201222022111087. The next prime is 201222022111207. The reversal of 201222022111110 is 11111220222102.

201222022111110 is a `hidden beast` number, since 20 + 122 + 202 + 211 + 1 + 110 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 61744674 + ... + 64921866.

It is an arithmetic number, because the mean of its divisors is an integer number (988806316680).

Almost surely, 2^{201222022111110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222022111110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379701625605120).

201222022111110 is an abundant number, since it is smaller than the sum of its proper divisors (558181229099130).

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

201222022111110 is a wasteful number, since it uses less digits than its factorization.

201222022111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177293 (or 3177290 counting only the distinct ones).

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

Adding to 201222022111110 its reverse (11111220222102), we get a palindrome (212333242333212).

The spelling of 201222022111110 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-two million, one hundred eleven thousand, one hundred ten".