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211102201201 = 990121321301
BaseRepresentation
bin1100010010011010101…
…0111111010101110001
3202011220002000221102111
43010212222333111301
511424314130414301
6240551244445321
721152211050353
oct3044652772561
9664802027374
10211102201201
11815897642a1
1234ab5849841
1316ba347b1b8
14a3087970d3
155757ea0551
hex3126abf571

211102201201 has 4 divisors (see below), whose sum is σ = 211123532404. Its totient is φ = 211080870000.

The previous prime is 211102201199. The next prime is 211102201207. The reversal of 211102201201 is 102102201112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203941656801 + 7160544400 = 451599^2 + 84620^2 .

It is a cyclic number.

It is not a de Polignac number, because 211102201201 - 21 = 211102201199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211102201207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10650750 + ... + 10670551.

It is an arithmetic number, because the mean of its divisors is an integer number (52780883101).

Almost surely, 2211102201201 is an apocalyptic number.

It is an amenable number.

211102201201 is a deficient number, since it is larger than the sum of its proper divisors (21331203).

211102201201 is an equidigital number, since it uses as much as digits as its factorization.

211102201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21331202.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211102201201 its reverse (102102201112), we get a palindrome (313204402313).

The spelling of 211102201201 in words is "two hundred eleven billion, one hundred two million, two hundred one thousand, two hundred one".

Divisors: 1 9901 21321301 211102201201