221223443144 has 32 divisors (see below), whose sum is σ = 452522721600. Its totient is φ = 100551616320.

The previous prime is 221223443123. The next prime is 221223443167. The reversal of 221223443144 is 441344322122.

It is a happy number.

221223443144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221223443144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2673074 + ... + 2754590.

It is an arithmetic number, because the mean of its divisors is an integer number (14141335050).

Almost surely, 2^221223443144 is an apocalyptic number.

It is an amenable number.

221223443144 is an abundant number, since it is smaller than the sum of its proper divisors (231299278456).

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

221223443144 is a wasteful number, since it uses less digits than its factorization.

221223443144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112373 (or 112369 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 221223443144 its reverse (441344322122), we get a palindrome (662567765266).

The spelling of 221223443144 in words is "two hundred twenty-one billion, two hundred twenty-three million, four hundred forty-three thousand, one hundred forty-four".