221134342441244 has 24 divisors (see below), whose sum is σ = 387385105506000. Its totient is φ = 110452939096320.

The previous prime is 221134342441127. The next prime is 221134342441247. The reversal of 221134342441244 is 442144243431122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221134342441247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9060164 + ... + 22898804.

It is an arithmetic number, because the mean of its divisors is an integer number (16141046062750).

Almost surely, 2^{221134342441244} is an apocalyptic number.

It is an amenable number.

221134342441244 is a deficient number, since it is larger than the sum of its proper divisors (166250763064756).

221134342441244 is a wasteful number, since it uses less digits than its factorization.

221134342441244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13842773 (or 13842771 counting only the distinct ones).

The product of its digits is 589824, while the sum is 41.

Adding to 221134342441244 its reverse (442144243431122), we get a palindrome (663278585872366).

The spelling of 221134342441244 in words is "two hundred twenty-one trillion, one hundred thirty-four billion, three hundred forty-two million, four hundred forty-one thousand, two hundred forty-four".