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10201211202020 = 225592173846977
BaseRepresentation
bin1001010001110010011110…
…0100011110100111100100
31100010020002221121101010212
42110130213210132213210
52314114040031431040
633410212143234552
72102004344343446
oct224344744364744
940106087541125
1010201211202020
113283344862223
121189090ba8a58
1358cc7c391887
14273a54018496
1512a5548b6d65
hex9472791e9e4

10201211202020 has 72 divisors (see below), whose sum is σ = 21917781608184. Its totient is φ = 3988132175872.

The previous prime is 10201211201989. The next prime is 10201211202029. The reversal of 10201211202020 is 2020211210201.

10201211202020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5835017074084 + 4366194127936 = 2415578^2 + 2089544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10201211201986 and 10201211202004.

It is not an unprimeable number, because it can be changed into a prime (10201211202029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11620772 + ... + 12467748.

It is an arithmetic number, because the mean of its divisors is an integer number (304413633447).

Almost surely, 210201211202020 is an apocalyptic number.

10201211202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201211202020 is an abundant number, since it is smaller than the sum of its proper divisors (11716570406164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10201211202020 is a wasteful number, since it uses less digits than its factorization.

10201211202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847277 (or 847216 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10201211202020 its reverse (2020211210201), we get a palindrome (12221422412221).

The spelling of 10201211202020 in words is "ten trillion, two hundred one billion, two hundred eleven million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 59 118 173 236 295 346 590 692 865 1180 1730 3460 3481 6962 10207 13924 17405 20414 34810 40828 51035 69620 102070 204140 602213 846977 1204426 1693954 2408852 3011065 3387908 4234885 6022130 8469770 12044260 16939540 49971643 99943286 146527021 199886572 249858215 293054042 499716430 586108084 732635105 999432860 1465270210 2930540420 2948326937 5896653874 8645094239 11793307748 14741634685 17290188478 29483269370 34580376956 43225471195 58966538740 86450942390 172901884780 510060560101 1020121120202 2040242240404 2550302800505 5100605601010 10201211202020