201144111222 has 16 divisors (see below), whose sum is σ = 404988145200. Its totient is φ = 66598049952.

The previous prime is 201144111193. The next prime is 201144111239. The reversal of 201144111222 is 222111441102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112495813 + ... + 112497600.

It is an arithmetic number, because the mean of its divisors is an integer number (25311759075).

Almost surely, 2^201144111222 is an apocalyptic number.

201144111222 is an abundant number, since it is smaller than the sum of its proper divisors (203844033978).

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

201144111222 is a wasteful number, since it uses less digits than its factorization.

201144111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224993567.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201144111222 its reverse (222111441102), we get a palindrome (423255552324).

The spelling of 201144111222 in words is "two hundred one billion, one hundred forty-four million, one hundred eleven thousand, two hundred twenty-two".