22304104321221 has 16 divisors (see below), whose sum is σ = 33043568680320. Its totient is φ = 14869199855520.

The previous prime is 22304104321123. The next prime is 22304104321307. The reversal of 22304104321221 is 12212340140322.

22304104321221 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 4 + 1 + 0 + 432 + 1 + 221 = 666.

It is not a de Polignac number, because 22304104321221 - 2¹⁸ = 22304104059077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22304104326221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3612265 + ... + 7593198.

It is an arithmetic number, because the mean of its divisors is an integer number (2065223042520).

Almost surely, 2^{22304104321221} is an apocalyptic number.

It is an amenable number.

22304104321221 is a deficient number, since it is larger than the sum of its proper divisors (10739464359099).

22304104321221 is a wasteful number, since it uses less digits than its factorization.

22304104321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279193 (or 11279187 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 22304104321221 its reverse (12212340140322), we get a palindrome (34516444461543).

The spelling of 22304104321221 in words is "twenty-two trillion, three hundred four billion, one hundred four million, three hundred twenty-one thousand, two hundred twenty-one".