221224040104 has 16 divisors (see below), whose sum is σ = 429098354100. Its totient is φ = 106797812352.

The previous prime is 221224040101. The next prime is 221224040111. The reversal of 221224040104 is 401040422122.

It can be written as a sum of positive squares in 2 ways, for example, as 221183971204 + 40068900 = 470302^2 + 6330^2 .

It is not an unprimeable number, because it can be changed into a prime (221224040101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476775717 + ... + 476776180.

Almost surely, 2^221224040104 is an apocalyptic number.

It is an amenable number.

221224040104 is a deficient number, since it is larger than the sum of its proper divisors (207874313996).

221224040104 is a wasteful number, since it uses less digits than its factorization.

221224040104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953551932 (or 953551928 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 221224040104 its reverse (401040422122), we get a palindrome (622264462226).

The spelling of 221224040104 in words is "two hundred twenty-one billion, two hundred twenty-four million, forty thousand, one hundred four".