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12122022109 is a prime number
BaseRepresentation
bin10110100101000011…
…10110000011011101
31011021210201112012211
423102201312003131
5144311214201414
65322505000421
7606252326221
oct132241660335
934253645184
1012122022109
11516062469a
122423783111
1311b2518c62
1482dd02781
154ae3253c4
hex2d28760dd

12122022109 has 2 divisors, whose sum is σ = 12122022110. Its totient is φ = 12122022108.

The previous prime is 12122022067. The next prime is 12122022119. The reversal of 12122022109 is 90122022121.

12122022109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10490266084 + 1631756025 = 102422^2 + 40395^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122022109 - 27 = 12122021981 is a prime.

It is a super-2 number, since 2×121220221092 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12122022109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122022119) 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, 6061011054 + 6061011055.

It is an arithmetic number, because the mean of its divisors is an integer number (6061011055).

Almost surely, 212122022109 is an apocalyptic number.

It is an amenable number.

12122022109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122022109 is an equidigital number, since it uses as much as digits as its factorization.

12122022109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 12122022109 in words is "twelve billion, one hundred twenty-two million, twenty-two thousand, one hundred nine".