320220222231 has 64 divisors (see below), whose sum is σ = 528884536320. Its totient is φ = 167817830400.

The previous prime is 320220222229. The next prime is 320220222253. The reversal of 320220222231 is 132222022023.

320220222231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 320220222231 - 2¹ = 320220222229 is a prime.

It is a super-2 number, since 2×320220222231² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 320220222198 and 320220222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320220222031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78234021 + ... + 78238113.

It is an arithmetic number, because the mean of its divisors is an integer number (8263820880).

Almost surely, 2^320220222231 is an apocalyptic number.

320220222231 is a deficient number, since it is larger than the sum of its proper divisors (208664314089).

320220222231 is a wasteful number, since it uses less digits than its factorization.

320220222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 320220222231 its reverse (132222022023), we get a palindrome (452442244254).

The spelling of 320220222231 in words is "three hundred twenty billion, two hundred twenty million, two hundred twenty-two thousand, two hundred thirty-one".