221434540044244 has 12 divisors (see below), whose sum is σ = 387518592719104. Its totient is φ = 110714942124504.

The previous prime is 221434540044233. The next prime is 221434540044283. The reversal of 221434540044244 is 442440045434122.

It is a self number, because there is not a number n which added to its sum of digits gives 221434540044244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581760372 + ... + 582140875.

Almost surely, 2^{221434540044244} is an apocalyptic number.

It is an amenable number.

221434540044244 is a deficient number, since it is larger than the sum of its proper divisors (166084052674860).

221434540044244 is a wasteful number, since it uses less digits than its factorization.

221434540044244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163948814 (or 1163948812 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 43.

Adding to 221434540044244 its reverse (442440045434122), we get a palindrome (663874585478366).

The spelling of 221434540044244 in words is "two hundred twenty-one trillion, four hundred thirty-four billion, five hundred forty million, forty-four thousand, two hundred forty-four".