22133112321 has 4 divisors (see below), whose sum is σ = 29510816432. Its totient is φ = 14755408212.

The previous prime is 22133112317. The next prime is 22133112343. The reversal of 22133112321 is 12321133122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22133112321 - 2² = 22133112317 is a prime.

It is a super-2 number, since 2×22133112321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22133112721) 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, 3688852051 + ... + 3688852056.

It is an arithmetic number, because the mean of its divisors is an integer number (7377704108).

Almost surely, 2^22133112321 is an apocalyptic number.

It is an amenable number.

22133112321 is a deficient number, since it is larger than the sum of its proper divisors (7377704111).

22133112321 is an equidigital number, since it uses as much as digits as its factorization.

22133112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377704110.

The product of its digits is 432, while the sum is 21.

Adding to 22133112321 its reverse (12321133122), we get a palindrome (34454245443).

The spelling of 22133112321 in words is "twenty-two billion, one hundred thirty-three million, one hundred twelve thousand, three hundred twenty-one".