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122231030213 is a prime number
BaseRepresentation
bin111000111010110001…
…0011000000111000101
3102200111111020200121002
41301311202120013011
54000312120431323
6132052511103045
711554666420445
oct1616542300705
9380444220532
10122231030213
1147924259146
121b832b11a85
13b6ac4918a6
145cb7780125
1532a5ca1828
hex1c758981c5

122231030213 has 2 divisors, whose sum is σ = 122231030214. Its totient is φ = 122231030212.

The previous prime is 122231030197. The next prime is 122231030227. The reversal of 122231030213 is 312030132221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85569120484 + 36661909729 = 292522^2 + 191473^2 .

It is a cyclic number.

It is not a de Polignac number, because 122231030213 - 24 = 122231030197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122231030263) 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, 61115515106 + 61115515107.

It is an arithmetic number, because the mean of its divisors is an integer number (61115515107).

Almost surely, 2122231030213 is an apocalyptic number.

It is an amenable number.

122231030213 is a deficient number, since it is larger than the sum of its proper divisors (1).

122231030213 is an equidigital number, since it uses as much as digits as its factorization.

122231030213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 122231030213 its reverse (312030132221), we get a palindrome (434261162434).

The spelling of 122231030213 in words is "one hundred twenty-two billion, two hundred thirty-one million, thirty thousand, two hundred thirteen".