22320220231 has 4 divisors (see below), whose sum is σ = 22320550192. Its totient is φ = 22319890272.

The previous prime is 22320220213. The next prime is 22320220253. The reversal of 22320220231 is 13202202322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22320220231 - 2³¹ = 20172736583 is a prime.

It is a super-3 number, since 3×22320220231³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22320220199 and 22320220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320280231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22491 + ... + 212476.

It is an arithmetic number, because the mean of its divisors is an integer number (5580137548).

Almost surely, 2^22320220231 is an apocalyptic number.

22320220231 is a deficient number, since it is larger than the sum of its proper divisors (329961).

22320220231 is an equidigital number, since it uses as much as digits as its factorization.

22320220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329960.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22320220231 its reverse (13202202322), we get a palindrome (35522422553).

The spelling of 22320220231 in words is "twenty-two billion, three hundred twenty million, two hundred twenty thousand, two hundred thirty-one".