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11112020212 = 224093678721
BaseRepresentation
bin10100101100101001…
…11111100011110100
31001200102020010002011
422112110333203310
5140224134121322
65034345054004
7542236420246
oct122624774364
931612203064
1011112020212
11479249a287
1221a1487304
1310811b93b7
14775b10096
1545081a677
hex29653f8f4

11112020212 has 12 divisors (see below), whose sum is σ = 19450815076. Its totient is φ = 5554644480.

The previous prime is 11112020209. The next prime is 11112020221. The reversal of 11112020212 is 21202021111.

It can be written as a sum of positive squares in 2 ways, for example, as 2120049936 + 8991970276 = 46044^2 + 94826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11112020192 and 11112020201.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 322989 + ... + 355732.

Almost surely, 211112020212 is an apocalyptic number.

It is an amenable number.

11112020212 is a deficient number, since it is larger than the sum of its proper divisors (8338794864).

11112020212 is a wasteful number, since it uses less digits than its factorization.

11112020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682818 (or 682816 counting only the distinct ones).

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

Adding to 11112020212 its reverse (21202021111), we get a palindrome (32314041323).

The spelling of 11112020212 in words is "eleven billion, one hundred twelve million, twenty thousand, two hundred twelve".

Divisors: 1 2 4 4093 8186 16372 678721 1357442 2714884 2778005053 5556010106 11112020212