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212002020222220 = 22587721191570373
BaseRepresentation
bin110000001101000010010001…
…000110110110010100001100
31000210122012021022010002021001
4300031002101012312110030
5210241420114134102340
62030520214503550044
762440432460044654
oct6015022106662414
91023565238102231
10212002020222220
1161606608596a98
121b93b4b375b324
13913a921386417
143a4cd49a43364
1519799d451929a
hexc0d0911b650c

212002020222220 has 48 divisors (see below), whose sum is σ = 445733701535808. Its totient is φ = 84699968221440.

The previous prime is 212002020222143. The next prime is 212002020222229. The reversal of 212002020222220 is 22222020200212.

It is not an unprimeable number, because it can be changed into a prime (212002020222229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371404954 + ... + 371975326.

It is an arithmetic number, because the mean of its divisors is an integer number (9286118781996).

Almost surely, 2212002020222220 is an apocalyptic number.

212002020222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002020222220 is an abundant number, since it is smaller than the sum of its proper divisors (233731681313588).

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

212002020222220 is a wasteful number, since it uses less digits than its factorization.

212002020222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592450 (or 592448 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 212002020222220 its reverse (22222020200212), we get a palindrome (234224040422432).

The spelling of 212002020222220 in words is "two hundred twelve trillion, two billion, twenty million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 877 1754 3508 4385 8770 17540 21191 42382 84764 105955 211910 423820 570373 1140746 2281492 2851865 5703730 11407460 18584507 37169014 74338028 92922535 185845070 371690140 500217121 1000434242 2000868484 2501085605 5002171210 10004342420 12086774243 24173548486 48347096972 60433871215 120867742430 241735484860 10600101011111 21200202022222 42400404044444 53000505055555 106001010111110 212002020222220