221244043124444 has 48 divisors (see below), whose sum is σ = 388120025865600. Its totient is φ = 110352993302016.

The previous prime is 221244043124431. The next prime is 221244043124473. The reversal of 221244043124444 is 444421340442122.

It is a happy number.

221244043124444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18076964477 + ... + 18076976715.

It is an arithmetic number, because the mean of its divisors is an integer number (8085833872200).

Almost surely, 2^{221244043124444} is an apocalyptic number.

It is an amenable number.

221244043124444 is a deficient number, since it is larger than the sum of its proper divisors (166875982741156).

221244043124444 is a wasteful number, since it uses less digits than its factorization.

221244043124444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19262 (or 19260 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 41.

Adding to 221244043124444 its reverse (444421340442122), we get a palindrome (665665383566566).

The spelling of 221244043124444 in words is "two hundred twenty-one trillion, two hundred forty-four billion, forty-three million, one hundred twenty-four thousand, four hundred forty-four".