Base | Representation |
---|---|
bin | 1100010101110011001… |
… | …0000011000101010001 |
3 | 202021020100020222100110 |
4 | 3011130302003011101 |
5 | 11433144031134301 |
6 | 241221314311533 |
7 | 21213543306036 |
oct | 3053462030521 |
9 | 667210228313 |
10 | 212010021201 |
11 | 81a05147960 |
12 | 351098885a9 |
13 | 16cb95820b4 |
14 | a39318b38d |
15 | 57aca240d6 |
hex | 315cc83151 |
212010021201 has 32 divisors (see below), whose sum is σ = 318371291136. Its totient is φ = 124363512000.
The previous prime is 212010021191. The next prime is 212010021217. The reversal of 212010021201 is 102120010212.
It is not a de Polignac number, because 212010021201 - 217 = 212009890129 is a prime.
It is not an unprimeable number, because it can be changed into a prime (212010021701) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221335 + ... + 687756.
It is an arithmetic number, because the mean of its divisors is an integer number (9949102848).
Almost surely, 2212010021201 is an apocalyptic number.
It is an amenable number.
212010021201 is a deficient number, since it is larger than the sum of its proper divisors (106361269935).
212010021201 is a wasteful number, since it uses less digits than its factorization.
212010021201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 909333.
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 212010021201 its reverse (102120010212), we get a palindrome (314130031413).
It can be divided in two parts, 2120100 and 21201, that multiplied together give a square (44948240100 = 2120102).
The spelling of 212010021201 in words is "two hundred twelve billion, ten million, twenty-one thousand, two hundred one".
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