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1211227 is a prime number
BaseRepresentation
bin100100111101101011011
32021112111021
410213231123
5302224402
641543311
713203163
oct4475533
92245437
101211227
11758016
124a4b37
13335404
142375a3
1518dd37
hex127b5b

1211227 has 2 divisors, whose sum is σ = 1211228. Its totient is φ = 1211226.

The previous prime is 1211207. The next prime is 1211261. The reversal of 1211227 is 7221121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1211227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211227.

It is not a weakly prime, because it can be changed into another prime (1211207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605613 + 605614.

It is an arithmetic number, because the mean of its divisors is an integer number (605614).

21211227 is an apocalyptic number.

1211227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211227 is an equidigital number, since it uses as much as digits as its factorization.

1211227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56, while the sum is 16.

The square root of 1211227 is about 1100.5575859536. The cubic root of 1211227 is about 106.5962306254.

Adding to 1211227 its reverse (7221121), we get a palindrome (8432348).

The spelling of 1211227 in words is "one million, two hundred eleven thousand, two hundred twenty-seven".