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212020022222020 = 225172327112534811
BaseRepresentation
bin110000001101010011000010…
…000111000001110011000100
31000210200220201220001102111101
4300031103002013001303010
5210242214001142101040
62030532353101145444
762441640541366255
oct6015230207016304
91023626656042441
10212020022222020
1161613206214981
121b942a9855b284
13913c52cb36ccc
143a4db76830b2c
15197a1d9b6a09a
hexc0d4c21c1cc4

212020022222020 has 48 divisors (see below), whose sum is σ = 491929831628928. Its totient is φ = 76348898024960.

The previous prime is 212020022221979. The next prime is 212020022222039. The reversal of 212020022222020 is 20222220020212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13556259586 + ... + 13556275225.

It is an arithmetic number, because the mean of its divisors is an integer number (10248538158936).

Almost surely, 2212020022222020 is an apocalyptic number.

212020022222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020022222020 is an abundant number, since it is smaller than the sum of its proper divisors (279909809406908).

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

212020022222020 is a wasteful number, since it uses less digits than its factorization.

212020022222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27112534860 (or 27112534858 counting only the distinct ones).

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

Adding to 212020022222020 its reverse (20222220020212), we get a palindrome (232242242242232).

The spelling of 212020022222020 in words is "two hundred twelve trillion, twenty billion, twenty-two million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 170 230 340 391 460 782 1564 1955 3910 7820 27112534811 54225069622 108450139244 135562674055 271125348110 460913091787 542250696220 623588300653 921826183574 1247176601306 1843652367148 2304565458935 2494353202612 3117941503265 4609130917870 6235883006530 9218261835740 10601001111101 12471766013060 21202002222202 42404004444404 53005005555505 106010011111010 212020022222020