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2222112213 = 32246901357
BaseRepresentation
bin1000010001110010…
…1011110111010101
312201212021222220100
42010130223313111
514022330042323
61004255324313
7106031433156
oct20434536725
95655258810
102222112213
11a40362882
12520220699
132954a42c9
1417119592d
15d0138943
hex8472bdd5

2222112213 has 6 divisors (see below), whose sum is σ = 3209717654. Its totient is φ = 1481408136.

The previous prime is 2222112199. The next prime is 2222112229. The reversal of 2222112213 is 3122112222.

It can be written as a sum of positive squares in only one way, i.e., 1682804484 + 539307729 = 41022^2 + 23223^2 .

It is not a de Polignac number, because 2222112213 - 24 = 2222112197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222112253) 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 5 ways as a sum of consecutive naturals, for example, 123450670 + ... + 123450687.

Almost surely, 22222112213 is an apocalyptic number.

It is an amenable number.

2222112213 is a deficient number, since it is larger than the sum of its proper divisors (987605441).

2222112213 is a wasteful number, since it uses less digits than its factorization.

2222112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246901363 (or 246901360 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2222112213 is about 47139.2852406568. The cubic root of 2222112213 is about 1304.9343464571.

Adding to 2222112213 its reverse (3122112222), we get a palindrome (5344224435).

Subtracting 2222112213 from its reverse (3122112222), we obtain a palindrome (900000009).

The spelling of 2222112213 in words is "two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred thirteen".

Divisors: 1 3 9 246901357 740704071 2222112213