221441240044 has 6 divisors (see below), whose sum is σ = 387522170084. Its totient is φ = 110720620020.

The previous prime is 221441240039. The next prime is 221441240047. The reversal of 221441240044 is 440042144122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221441239994 and 221441240021.

It is not an unprimeable number, because it can be changed into a prime (221441240047) by changing a digit.

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 as a sum of consecutive naturals, namely, 27680155002 + ... + 27680155009.

Almost surely, 2^221441240044 is an apocalyptic number.

It is an amenable number.

221441240044 is a deficient number, since it is larger than the sum of its proper divisors (166080930040).

221441240044 is a wasteful number, since it uses less digits than its factorization.

221441240044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55360310015 (or 55360310013 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 221441240044 its reverse (440042144122), we get a palindrome (661483384166).

The spelling of 221441240044 in words is "two hundred twenty-one billion, four hundred forty-one million, two hundred forty thousand, forty-four".