201122200444 has 12 divisors (see below), whose sum is σ = 383960564568. Its totient is φ = 91419182000.

The previous prime is 201122200423. The next prime is 201122200453. The reversal of 201122200444 is 444002221102.

It is a super-2 number, since 2×201122200444² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 3 ways as a sum of consecutive naturals, for example, 2285479507 + ... + 2285479594.

It is an arithmetic number, because the mean of its divisors is an integer number (31996713714).

Almost surely, 2^201122200444 is an apocalyptic number.

It is an amenable number.

201122200444 is a deficient number, since it is larger than the sum of its proper divisors (182838364124).

201122200444 is a wasteful number, since it uses less digits than its factorization.

201122200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570959116 (or 4570959114 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 201122200444 its reverse (444002221102), we get a palindrome (645124421546).

The spelling of 201122200444 in words is "two hundred one billion, one hundred twenty-two million, two hundred thousand, four hundred forty-four".