221322342104 has 8 divisors (see below), whose sum is σ = 414979391460. Its totient is φ = 110661171048.

The previous prime is 221322342097. The next prime is 221322342133. The reversal of 221322342104 is 401243223122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221322342104² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 13832646374 + ... + 13832646389.

Almost surely, 2^221322342104 is an apocalyptic number.

It is an amenable number.

221322342104 is a deficient number, since it is larger than the sum of its proper divisors (193657049356).

221322342104 is a wasteful number, since it uses less digits than its factorization.

221322342104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27665292769 (or 27665292765 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 221322342104 its reverse (401243223122), we get a palindrome (622565565226).

The spelling of 221322342104 in words is "two hundred twenty-one billion, three hundred twenty-two million, three hundred forty-two thousand, one hundred four".