2222220423 has 16 divisors (see below), whose sum is σ = 3056498816. Its totient is φ = 1435436640.

The previous prime is 2222220401. The next prime is 2222220499. The reversal of 2222220423 is 3240222222.

It is not a de Polignac number, because 2222220423 - 2⁵ = 2222220391 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 2222220423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222220223) 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 15 ways as a sum of consecutive naturals, for example, 78361 + ... + 102882.

It is an arithmetic number, because the mean of its divisors is an integer number (191031176).

Almost surely, 2^2222220423 is an apocalyptic number.

2222220423 is a deficient number, since it is larger than the sum of its proper divisors (834278393).

2222220423 is a wasteful number, since it uses less digits than its factorization.

2222220423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181374.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2222220423 is about 47140.4329954658. The cubic root of 2222220423 is about 1304.9555282037.

Adding to 2222220423 its reverse (3240222222), we get a palindrome (5462442645).

The spelling of 2222220423 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand, four hundred twenty-three".