221042432322 has 12 divisors (see below), whose sum is σ = 478925270070. Its totient is φ = 73680810768.

The previous prime is 221042432309. The next prime is 221042432339. The reversal of 221042432322 is 223234240122.

221042432322 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 424 + 3 + 232 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118245889161 + 102796543161 = 343869^2 + 320619^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6140067547 + ... + 6140067582.

Almost surely, 2^221042432322 is an apocalyptic number.

221042432322 is an abundant number, since it is smaller than the sum of its proper divisors (257882837748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221042432322 is a wasteful number, since it uses less digits than its factorization.

221042432322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12280135137 (or 12280135134 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 221042432322 its reverse (223234240122), we get a palindrome (444276672444).

The spelling of 221042432322 in words is "two hundred twenty-one billion, forty-two million, four hundred thirty-two thousand, three hundred twenty-two".