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211111200211 = 2914639497281
BaseRepresentation
bin1100010010011100110…
…1010100010111010011
3202011220200222010202011
43010213031110113103
511424323431401321
6240552205403351
721152350410502
oct3044715242723
9664820863664
10211111200211
118159385039a
1234ab8869557
1316ba52ac262
14a309a5a839
155758b7bae1
hex31273545d3

211111200211 has 8 divisors (see below), whose sum is σ = 218406254400. Its totient is φ = 203817169920.

The previous prime is 211111200199. The next prime is 211111200241. The reversal of 211111200211 is 112002111112.

It is a happy number.

211111200211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211111200211 - 221 = 211109103059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211111200191 and 211111200200.

It is not an unprimeable number, because it can be changed into a prime (211111200241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175891 + ... + 673171.

It is an arithmetic number, because the mean of its divisors is an integer number (27300781800).

Almost surely, 2211111200211 is an apocalyptic number.

211111200211 is a deficient number, since it is larger than the sum of its proper divisors (7295054189).

211111200211 is a wasteful number, since it uses less digits than its factorization.

211111200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511949.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211111200211 its reverse (112002111112), we get a palindrome (323113311323).

The spelling of 211111200211 in words is "two hundred eleven billion, one hundred eleven million, two hundred thousand, two hundred eleven".

Divisors: 1 29 14639 424531 497281 14421149 7279696559 211111200211