221124222244 has 6 divisors (see below), whose sum is σ = 386967388934. Its totient is φ = 110562111120.

The previous prime is 221124222203. The next prime is 221124222379. The reversal of 221124222244 is 442222421122.

It can be written as a sum of positive squares in only one way, i.e., 220112982244 + 1011240000 = 469162^2 + 31800^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27640527777 + ... + 27640527784.

Almost surely, 2^221124222244 is an apocalyptic number.

It is an amenable number.

221124222244 is a deficient number, since it is larger than the sum of its proper divisors (165843166690).

221124222244 is a wasteful number, since it uses less digits than its factorization.

221124222244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55281055565 (or 55281055563 counting only the distinct ones).

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

Adding to 221124222244 its reverse (442222421122), we get a palindrome (663346643366).

The spelling of 221124222244 in words is "two hundred twenty-one billion, one hundred twenty-four million, two hundred twenty-two thousand, two hundred forty-four".