201224142444 has 48 divisors (see below), whose sum is σ = 506459909088. Its totient is φ = 61814742528.

The previous prime is 201224142401. The next prime is 201224142461. The reversal of 201224142444 is 444241422102.

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 15 ways as a sum of consecutive naturals, for example, 949047 + ... + 1141550.

It is an arithmetic number, because the mean of its divisors is an integer number (10551248106).

Almost surely, 2^201224142444 is an apocalyptic number.

It is an amenable number.

201224142444 is an abundant number, since it is smaller than the sum of its proper divisors (305235766644).

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

201224142444 is a wasteful number, since it uses less digits than its factorization.

201224142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091234 (or 2091232 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 201224142444 its reverse (444241422102), we get a palindrome (645465564546).

The spelling of 201224142444 in words is "two hundred one billion, two hundred twenty-four million, one hundred forty-two thousand, four hundred forty-four".