321440422021244 has 12 divisors (see below), whose sum is σ = 562524403740768. Its totient is φ = 160719163809600.

The previous prime is 321440422021237. The next prime is 321440422021261. The reversal of 321440422021244 is 442120224044123.

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 in 3 ways as a sum of consecutive naturals, for example, 261109412 + ... + 262337579.

It is an arithmetic number, because the mean of its divisors is an integer number (46877033645064).

Almost surely, 2^{321440422021244} is an apocalyptic number.

It is an amenable number.

321440422021244 is a deficient number, since it is larger than the sum of its proper divisors (241083981719524).

321440422021244 is a wasteful number, since it uses less digits than its factorization.

321440422021244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523600516 (or 523600514 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 321440422021244 its reverse (442120224044123), we get a palindrome (763560646065367).

The spelling of 321440422021244 in words is "three hundred twenty-one trillion, four hundred forty billion, four hundred twenty-two million, twenty-one thousand, two hundred forty-four".