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BaseRepresentation
bin11001000011000…
…11010111011001
3112122101022110202
430201203113121
5412242402301
632503351545
75131003112
oct1441432731
9478338422
10210122201
11a8676a13
125a4525b5
13346bc683
141dc99209
15136a866b
hexc8635d9

210122201 has 2 divisors, whose sum is σ = 210122202. Its totient is φ = 210122200.

The previous prime is 210122189. The next prime is 210122203. The reversal of 210122201 is 102221012.

It is a happy number.

210122201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208369225 + 1752976 = 14435^2 + 1324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-210122201 is a prime.

Together with 210122203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210122203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061100 + 105061101.

It is an arithmetic number, because the mean of its divisors is an integer number (105061101).

Almost surely, 2210122201 is an apocalyptic number.

It is an amenable number.

210122201 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122201 is an equidigital number, since it uses as much as digits as its factorization.

210122201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 210122201 is about 14495.5924680573. The cubic root of 210122201 is about 594.5074670797.

Adding to 210122201 its reverse (102221012), we get a palindrome (312343213).

The spelling of 210122201 in words is "two hundred ten million, one hundred twenty-two thousand, two hundred one".