320221021011 has 32 divisors (see below), whose sum is σ = 437212339200. Its totient is φ = 208380353280.

The previous prime is 320221021009. The next prime is 320221021037. The reversal of 320221021011 is 110120122023.

It is not a de Polignac number, because 320221021011 - 2¹ = 320221021009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320221023011) 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 31 ways as a sum of consecutive naturals, for example, 117338695 + ... + 117341423.

It is an arithmetic number, because the mean of its divisors is an integer number (13662885600).

Almost surely, 2^320221021011 is an apocalyptic number.

320221021011 is a deficient number, since it is larger than the sum of its proper divisors (116991318189).

320221021011 is a wasteful number, since it uses less digits than its factorization.

320221021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 320221021011 its reverse (110120122023), we get a palindrome (430341143034).

The spelling of 320221021011 in words is "three hundred twenty billion, two hundred twenty-one million, twenty-one thousand, eleven".