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12100201 is a prime number
BaseRepresentation
bin101110001010…
…001001101001
3211202202100121
4232022021221
511044201301
61111203241
7204564361
oct56121151
924682317
1012100201
116915073
124076521
1326787a9
14186d9a1
1510e03a1
hexb8a269

12100201 has 2 divisors, whose sum is σ = 12100202. Its totient is φ = 12100200.

The previous prime is 12100189. The next prime is 12100211. The reversal of 12100201 is 10200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9603801 + 2496400 = 3099^2 + 1580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12100201 is a prime.

It is not a weakly prime, because it can be changed into another prime (12100211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050100 + 6050101.

It is an arithmetic number, because the mean of its divisors is an integer number (6050101).

Almost surely, 212100201 is an apocalyptic number.

It is an amenable number.

12100201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100201 is an equidigital number, since it uses as much as digits as its factorization.

12100201 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 12100201 is about 3478.5343177839. The cubic root of 12100201 is about 229.5783136712.

Adding to 12100201 its reverse (10200121), we get a palindrome (22300322).

The spelling of 12100201 in words is "twelve million, one hundred thousand, two hundred one".