2221122323 has 12 divisors (see below), whose sum is σ = 2620149552. Its totient is φ = 1877001840.

The previous prime is 2221122263. The next prime is 2221122331. The reversal of 2221122323 is 3232211222.

It is a happy number.

It is not a de Polignac number, because 2221122323 - 2¹⁸ = 2220860179 is a prime.

It is a super-3 number, since 3×2221122323³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221122295 and 2221122304.

It is not an unprimeable number, because it can be changed into a prime (2221122373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315740 + ... + 322697.

It is an arithmetic number, because the mean of its divisors is an integer number (218345796).

Almost surely, 2^2221122323 is an apocalyptic number.

2221122323 is a deficient number, since it is larger than the sum of its proper divisors (399027229).

2221122323 is an equidigital number, since it uses as much as digits as its factorization.

2221122323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638522 (or 638515 counting only the distinct ones).

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

The square root of 2221122323 is about 47128.7844422069. The cubic root of 2221122323 is about 1304.7405468653.

Adding to 2221122323 its reverse (3232211222), we get a palindrome (5453333545).

The spelling of 2221122323 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, three hundred twenty-three".