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2101210010212 = 221767472397649
BaseRepresentation
bin11110100100111001111…
…000000101001001100100
321102212120221100002011211
4132210321320011021210
5233411234230311322
64245141010441204
7304543641253105
oct36447170051144
97385527302154
102101210010212
117401332aa525
1229b28ab93204
131231b2961691
14739b04c83ac
15399cd57db77
hex1e939e05264

2101210010212 has 48 divisors (see below), whose sum is σ = 3952406404800. Its totient is φ = 973830223872.

The previous prime is 2101210010209. The next prime is 2101210010219. The reversal of 2101210010212 is 2120100121012.

It is a super-2 number, since 2×21012100102122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101210010192 and 2101210010201.

It is not an unprimeable number, because it can be changed into a prime (2101210010219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21469164 + ... + 21566812.

It is an arithmetic number, because the mean of its divisors is an integer number (82341800100).

Almost surely, 22101210010212 is an apocalyptic number.

It is an amenable number.

2101210010212 is a deficient number, since it is larger than the sum of its proper divisors (1851196394588).

2101210010212 is a wasteful number, since it uses less digits than its factorization.

2101210010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102460 (or 102458 counting only the distinct ones).

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

Adding to 2101210010212 its reverse (2120100121012), we get a palindrome (4221310131224).

The spelling of 2101210010212 in words is "two trillion, one hundred one billion, two hundred ten million, ten thousand, two hundred twelve".

Divisors: 1 2 4 17 34 67 68 134 268 1139 2278 4556 4723 9446 18892 80291 97649 160582 195298 316441 321164 390596 632882 1265764 1660033 3320066 5379497 6542483 6640132 10758994 13084966 21517988 26169932 111222211 222444422 444888844 461196227 922392454 1844784908 7840335859 15680671718 30900147209 31361343436 61800294418 123600588836 525302502553 1050605005106 2101210010212