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122207 is a prime number
BaseRepresentation
bin11101110101011111
320012122012
4131311133
512402312
62341435
71016201
oct356537
9205565
10122207
11838a8
125a87b
1343817
1432771
1526322
hex1dd5f

122207 has 2 divisors, whose sum is σ = 122208. Its totient is φ = 122206.

The previous prime is 122203. The next prime is 122209. The reversal of 122207 is 702221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122207 - 22 = 122203 is a prime.

Together with 122209, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122191 and 122200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122201) 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, 61103 + 61104.

It is an arithmetic number, because the mean of its divisors is an integer number (61104).

2122207 is an apocalyptic number.

122207 is a deficient number, since it is larger than the sum of its proper divisors (1).

122207 is an equidigital number, since it uses as much as digits as its factorization.

122207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 122207 is about 349.5811779830. The cubic root of 122207 is about 49.6247914133.

Adding to 122207 its sum of digits (14), we get a palindrome (122221).

Adding to 122207 its reverse (702221), we get a palindrome (824428).

The spelling of 122207 in words is "one hundred twenty-two thousand, two hundred seven", and thus it is an iban number.