Base | Representation |
---|---|
bin | 10001100111110101111… |
… | …100111101111000100100 |
3 | 11021202211112010100110221 |
4 | 101213311330331320210 |
5 | 124320123111211322 |
6 | 2324155322254124 |
7 | 153331003642120 |
oct | 21476574757044 |
9 | 4252745110427 |
10 | 1211012210212 |
11 | 427650904672 |
12 | 176851657344 |
13 | 8a275bc8c1c |
14 | 42882c96580 |
15 | 2177b88c9c7 |
hex | 119f5f3de24 |
1211012210212 has 48 divisors (see below), whose sum is σ = 2566383662080. Its totient is φ = 488432916000.
The previous prime is 1211012210159. The next prime is 1211012210321. The reversal of 1211012210212 is 2120122101121.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7457214 + ... + 7617877.
Almost surely, 21211012210212 is an apocalyptic number.
It is an amenable number.
1211012210212 is an abundant number, since it is smaller than the sum of its proper divisors (1355371451868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1211012210212 is a wasteful number, since it uses less digits than its factorization.
1211012210212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15075272 (or 15075270 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 16.
Adding to 1211012210212 its reverse (2120122101121), we get a palindrome (3331134311333).
The spelling of 1211012210212 in words is "one trillion, two hundred eleven billion, twelve million, two hundred ten thousand, two hundred twelve".
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