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22222220011 is a prime number
BaseRepresentation
bin10100101100100011…
…000010101011101011
32010100201000202000121
4110230203002223223
5331002342020021
614113031144111
71414454516305
oct245443025353
963321022017
1022222220011
119473955892
124382215037
132131bb9014
14110b4a8975
158a0dc6741
hex52c8c2aeb

22222220011 has 2 divisors, whose sum is σ = 22222220012. Its totient is φ = 22222220010.

The previous prime is 22222220003. The next prime is 22222220077. The reversal of 22222220011 is 11002222222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22222220011 - 23 = 22222220003 is a prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (22222220411) 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 as a sum of consecutive naturals, namely, 11111110005 + 11111110006.

It is an arithmetic number, because the mean of its divisors is an integer number (11111110006).

Almost surely, 222222220011 is an apocalyptic number.

22222220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222220011 is an equidigital number, since it uses as much as digits as its factorization.

22222220011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22222220011 its reverse (11002222222), we get a palindrome (33224442233).

The spelling of 22222220011 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty thousand, eleven".