2122221323 has 4 divisors (see below), whose sum is σ = 2125141200. Its totient is φ = 2119301448.

The previous prime is 2122221307. The next prime is 2122221329. The reversal of 2122221323 is 3231222212.

It is a happy number.

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 2122221323 - 2⁴ = 2122221307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122221295 and 2122221304.

It is not an unprimeable number, because it can be changed into a prime (2122221329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458848 + ... + 1460301.

It is an arithmetic number, because the mean of its divisors is an integer number (531285300).

Almost surely, 2^2122221323 is an apocalyptic number.

2122221323 is a deficient number, since it is larger than the sum of its proper divisors (2919877).

2122221323 is an equidigital number, since it uses as much as digits as its factorization.

2122221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919876.

The product of its digits is 576, while the sum is 20.

The square root of 2122221323 is about 46067.5734438010. The cubic root of 2122221323 is about 1285.0801774880.

Adding to 2122221323 its reverse (3231222212), we get a palindrome (5353443535).

The spelling of 2122221323 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred twenty-three".