321054142221 has 12 divisors (see below), whose sum is σ = 468247250848. Its totient is φ = 211958073864.

The previous prime is 321054142219. The next prime is 321054142289. The reversal of 321054142221 is 122241450123.

321054142221 is a `hidden beast` number, since 3 + 21 + 0 + 5 + 414 + 2 + 221 = 666.

It is not a de Polignac number, because 321054142221 - 2¹ = 321054142219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321054142291) 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 11 ways as a sum of consecutive naturals, for example, 173167435 + ... + 173169288.

Almost surely, 2^321054142221 is an apocalyptic number.

It is an amenable number.

321054142221 is a deficient number, since it is larger than the sum of its proper divisors (147193108627).

321054142221 is a wasteful number, since it uses less digits than its factorization.

321054142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346336832 (or 346336829 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 321054142221 its reverse (122241450123), we get a palindrome (443295592344).

The spelling of 321054142221 in words is "three hundred twenty-one billion, fifty-four million, one hundred forty-two thousand, two hundred twenty-one".