Base | Representation |
---|---|
bin | 1100010010110100111… |
… | …0100110110011110001 |
3 | 202012011202000112001120 |
4 | 3010231032212303301 |
5 | 11430030310414301 |
6 | 241010214252453 |
7 | 21155015042151 |
oct | 3045516466361 |
9 | 665152015046 |
10 | 211212201201 |
11 | 81635865991 |
12 | 34b26657129 |
13 | 16bc01b3561 |
14 | a31922c761 |
15 | 576297ce36 |
hex | 312d3a6cf1 |
211212201201 has 8 divisors (see below), whose sum is σ = 281647992384. Its totient is φ = 140792272080.
The previous prime is 211212201139. The next prime is 211212201229. The reversal of 211212201201 is 102102212112.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 211212201201 - 229 = 210675330289 is a prime.
It is a super-2 number, since 2×2112122012012 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (211212201401) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3934410 + ... + 3987731.
It is an arithmetic number, because the mean of its divisors is an integer number (35205999048).
Almost surely, 2211212201201 is an apocalyptic number.
It is an amenable number.
211212201201 is a deficient number, since it is larger than the sum of its proper divisors (70435791183).
211212201201 is an equidigital number, since it uses as much as digits as its factorization.
211212201201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7931031.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 211212201201 its reverse (102102212112), we get a palindrome (313314413313).
The spelling of 211212201201 in words is "two hundred eleven billion, two hundred twelve million, two hundred one thousand, two hundred one".
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