22320123211 has 4 divisors (see below), whose sum is σ = 22550227672. Its totient is φ = 22090018752.

The previous prime is 22320123193. The next prime is 22320123227. The reversal of 22320123211 is 11232102322.

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 22320123211 - 2¹¹ = 22320121163 is a prime.

It is a super-3 number, since 3×22320123211³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22320121211) 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, 115052085 + ... + 115052278.

It is an arithmetic number, because the mean of its divisors is an integer number (5637556918).

Almost surely, 2^22320123211 is an apocalyptic number.

22320123211 is a deficient number, since it is larger than the sum of its proper divisors (230104461).

22320123211 is an equidigital number, since it uses as much as digits as its factorization.

22320123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230104460.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22320123211 its reverse (11232102322), we get a palindrome (33552225533).

The spelling of 22320123211 in words is "twenty-two billion, three hundred twenty million, one hundred twenty-three thousand, two hundred eleven".