Search a number
-
+
12122010071 is a prime number
BaseRepresentation
bin10110100101000011…
…10011000111010111
31011021210200220200222
423102201303013113
5144311213310241
65322504424555
7606252246143
oct132241630727
934253626628
1012122010071
115160616646
12242377815b
1311b2513632
1482dcdc223
154ae321a4b
hex2d28731d7

12122010071 has 2 divisors, whose sum is σ = 12122010072. Its totient is φ = 12122010070.

The previous prime is 12122009989. The next prime is 12122010101. The reversal of 12122010071 is 17001022121.

It is a strong prime.

It is an emirp because it is prime and its reverse (17001022121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12122010071 is a prime.

It is a super-2 number, since 2×121220100712 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122010371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061005035 + 6061005036.

It is an arithmetic number, because the mean of its divisors is an integer number (6061005036).

Almost surely, 212122010071 is an apocalyptic number.

12122010071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122010071 is an equidigital number, since it uses as much as digits as its factorization.

12122010071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12122010071 its reverse (17001022121), we get a palindrome (29123032192).

The spelling of 12122010071 in words is "twelve billion, one hundred twenty-two million, ten thousand, seventy-one".