Search a number
-
+
12212027029 is a prime number
BaseRepresentation
bin10110101111110010…
…01011111010010101
31011112002002020202101
423113321023322111
5200002234331104
65335442042101
7611424342226
oct132771137225
934462066671
1012212027029
1151a7409724
122449949331
1311c80701c7
1483bc5124d
154b71a35a4
hex2d7e4be95

12212027029 has 2 divisors, whose sum is σ = 12212027030. Its totient is φ = 12212027028.

The previous prime is 12212027017. The next prime is 12212027057. The reversal of 12212027029 is 92072021221.

It is an a-pointer prime, because the next prime (12212027057) can be obtained adding 12212027029 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8281364004 + 3930663025 = 91002^2 + 62695^2 .

It is an emirp because it is prime and its reverse (92072021221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212027029 - 215 = 12211994261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212026988 and 12212027006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212027089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106013514 + 6106013515.

It is an arithmetic number, because the mean of its divisors is an integer number (6106013515).

Almost surely, 212212027029 is an apocalyptic number.

It is an amenable number.

12212027029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212027029 is an equidigital number, since it uses as much as digits as its factorization.

12212027029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 12212027029 in words is "twelve billion, two hundred twelve million, twenty-seven thousand, twenty-nine".