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2122030217 is a prime number
BaseRepresentation
bin111111001111011…
…1001110010001001
312110212222022012202
41332132321302021
513321214431332
6550322245545
7103404650006
oct17636716211
95425868182
102122030217
1199991578a
124b27b68b5
1327a8323a8
14161b828ad
15c6469a62
hex7e7b9c89

2122030217 has 2 divisors, whose sum is σ = 2122030218. Its totient is φ = 2122030216.

The previous prime is 2122030147. The next prime is 2122030223. The reversal of 2122030217 is 7120302212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1854249721 + 267780496 = 43061^2 + 16364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122030217 - 28 = 2122029961 is a prime.

It is a super-2 number, since 2×21220302172 = 9006024483722134178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2122030247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061015108 + 1061015109.

It is an arithmetic number, because the mean of its divisors is an integer number (1061015109).

Almost surely, 22122030217 is an apocalyptic number.

It is an amenable number.

2122030217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122030217 is an equidigital number, since it uses as much as digits as its factorization.

2122030217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2122030217 is about 46065.4992049364. The cubic root of 2122030217 is about 1285.0416025128.

Adding to 2122030217 its reverse (7120302212), we get a palindrome (9242332429).

The spelling of 2122030217 in words is "two billion, one hundred twenty-two million, thirty thousand, two hundred seventeen".