1012201 has 2 divisors, whose sum is σ = 1012202. Its totient is φ = 1012200.
The previous prime is 1012189. The next prime is 1012213. The reversal of 1012201 is 1022101.
It is a balanced prime because it is at equal distance from previous prime (1012189) and next prime (1012213).
It can be written as a sum of positive squares in only one way, i.e., 921600 + 90601 = 960^2 + 301^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1012201 is a prime.
It is not a weakly prime, because it can be changed into another prime (1012241) 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, 506100 + 506101.
It is an arithmetic number, because the mean of its divisors is an integer number (506101).
21012201 is an apocalyptic number.
It is an amenable number.
1012201 is a deficient number, since it is larger than the sum of its proper divisors (1).
1012201 is an equidigital number, since it uses as much as digits as its factorization.
1012201 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4, while the sum is 7.
The square root of 1012201 is about 1006.0820046100. The cubic root of 1012201 is about 100.4050570724.
Adding to 1012201 its reverse (1022101), we get a palindrome (2034302).
The spelling of 1012201 in words is "one million, twelve thousand, two hundred one".
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