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2222335681 is a prime number
BaseRepresentation
bin1000010001110110…
…0010011011000001
312201212201100102221
42010131202123001
514022404220211
61004304211041
7106033353526
oct20435423301
95655640387
102222335681
11a404a5765
12520309a81
13295551c37
1417121314d
15d017ec71
hex847626c1

2222335681 has 2 divisors, whose sum is σ = 2222335682. Its totient is φ = 2222335680.

The previous prime is 2222335679. The next prime is 2222335697. The reversal of 2222335681 is 1865332222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1415264400 + 807071281 = 37620^2 + 28409^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222335681 - 21 = 2222335679 is a prime.

It is a super-2 number, since 2×22223356812 = 9877551758091467522, which contains 22 as substring.

Together with 2222335679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2222305681) 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 as a sum of consecutive naturals, namely, 1111167840 + 1111167841.

It is an arithmetic number, because the mean of its divisors is an integer number (1111167841).

Almost surely, 22222335681 is an apocalyptic number.

It is an amenable number.

2222335681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222335681 is an equidigital number, since it uses as much as digits as its factorization.

2222335681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 2222335681 is about 47141.6554758104. The cubic root of 2222335681 is about 1304.9780888166.

The spelling of 2222335681 in words is "two billion, two hundred twenty-two million, three hundred thirty-five thousand, six hundred eighty-one".