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211000002212 = 22173102941209
BaseRepresentation
bin1100010010000010010…
…1001000011010100100
3202011121221201200202202
43010200211020122210
511424112000032322
6240533154154032
721146530266206
oct3044045103244
9664557650682
10211000002212
118153700071a
1234a87582918
1316b8824781c
14a2d8d92776
15574e014292
hex31209486a4

211000002212 has 12 divisors (see below), whose sum is σ = 390970592460. Its totient is φ = 99294118656.

The previous prime is 211000002211. The next prime is 211000002223. The reversal of 211000002212 is 212200000112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152462135296 + 58537866916 = 390464^2 + 241946^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211000002193 and 211000002202.

It is not an unprimeable number, because it can be changed into a prime (211000002211) 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 in 3 ways as a sum of consecutive naturals, for example, 1551470537 + ... + 1551470672.

It is an arithmetic number, because the mean of its divisors is an integer number (32580882705).

Almost surely, 2211000002212 is an apocalyptic number.

It is an amenable number.

211000002212 is a deficient number, since it is larger than the sum of its proper divisors (179970590248).

211000002212 is a wasteful number, since it uses less digits than its factorization.

211000002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102941230 (or 3102941228 counting only the distinct ones).

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

Adding to 211000002212 its reverse (212200000112), we get a palindrome (423200002324).

The spelling of 211000002212 in words is "two hundred eleven billion, two thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 3102941209 6205882418 12411764836 52750000553 105500001106 211000002212