321224023102240 has 96 divisors (see below), whose sum is σ = 816705109496304. Its totient is φ = 118948914954240.

The previous prime is 321224023102217. The next prime is 321224023102249. The reversal of 321224023102240 is 42201320422123.

It can be written as a sum of positive squares in 8 ways, for example, as 184506473555856 + 136717549546384 = 13583316^2 + 11692628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321224023102199 and 321224023102208.

It is not an unprimeable number, because it can be changed into a prime (321224023102249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967842829 + ... + 968174668.

Almost surely, 2^{321224023102240} is an apocalyptic number.

It is an amenable number.

321224023102240 is an abundant number, since it is smaller than the sum of its proper divisors (495481086394064).

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

321224023102240 is a wasteful number, since it uses less digits than its factorization.

321224023102240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936017590 (or 1936017582 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 321224023102240 its reverse (42201320422123), we get a palindrome (363425343524363).

The spelling of 321224023102240 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, twenty-three million, one hundred two thousand, two hundred forty".