Search a number
-
+
1210122229 is a prime number
BaseRepresentation
bin100100000100000…
…1111111111110101
310010100001120121211
41020020033333311
54434242402404
6320025041421
741662604101
oct11010177765
93110046554
101210122229
1157109a818
12299326271
13163929874
14b6a06901
1571389b04
hex4820fff5

1210122229 has 2 divisors, whose sum is σ = 1210122230. Its totient is φ = 1210122228.

The previous prime is 1210122197. The next prime is 1210122281. The reversal of 1210122229 is 9222210121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778521604 + 431600625 = 27902^2 + 20775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210122229 - 25 = 1210122197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210122289) 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, 605061114 + 605061115.

It is an arithmetic number, because the mean of its divisors is an integer number (605061115).

Almost surely, 21210122229 is an apocalyptic number.

It is an amenable number.

1210122229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210122229 is an equidigital number, since it uses as much as digits as its factorization.

1210122229 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 square root of 1210122229 is about 34786.8111358313. The cubic root of 1210122229 is about 1065.6381164113.

The spelling of 1210122229 in words is "one billion, two hundred ten million, one hundred twenty-two thousand, two hundred twenty-nine".