320020221050 has 12 divisors (see below), whose sum is σ = 595237611246. Its totient is φ = 128008088400.

The previous prime is 320020221043. The next prime is 320020221091. The reversal of 320020221050 is 50122020023.

It can be written as a sum of positive squares in 3 ways, for example, as 304484343601 + 15535877449 = 551801^2 + 124643^2 .

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, 3200202161 + ... + 3200202260.

Almost surely, 2^320020221050 is an apocalyptic number.

320020221050 is a deficient number, since it is larger than the sum of its proper divisors (275217390196).

320020221050 is a wasteful number, since it uses less digits than its factorization.

320020221050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400404433 (or 6400404428 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 320020221050 its reverse (50122020023), we get a palindrome (370142241073).

The spelling of 320020221050 in words is "three hundred twenty billion, twenty million, two hundred twenty-one thousand, fifty".