22231020311 has 4 divisors (see below), whose sum is σ = 22231868712. Its totient is φ = 22230171912.

The previous prime is 22231020283. The next prime is 22231020349. The reversal of 22231020311 is 11302013222.

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 22231020311 - 2¹⁰ = 22231019287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22231020311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22236020311) 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 3 ways as a sum of consecutive naturals, for example, 383600 + ... + 437733.

It is an arithmetic number, because the mean of its divisors is an integer number (5557967178).

Almost surely, 2^22231020311 is an apocalyptic number.

22231020311 is a deficient number, since it is larger than the sum of its proper divisors (848401).

22231020311 is an equidigital number, since it uses as much as digits as its factorization.

22231020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848400.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22231020311 its reverse (11302013222), we get a palindrome (33533033533).

The spelling of 22231020311 in words is "twenty-two billion, two hundred thirty-one million, twenty thousand, three hundred eleven".