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20212012022020 = 22571311105501111
BaseRepresentation
bin1001001100001111110011…
…10010111111100100000100
32122120020201212111010121121
410212013321302333210010
510122123200034201040
6110553134203323324
74154161333333150
oct446077162774404
978506655433547
1020212012022020
116492958951165
122325281b20544
13b37ca50b6740
144dc3a37aa060
15250b62b52c4a
hex1261f9cbf904

20212012022020 has 48 divisors (see below), whose sum is σ = 52240277230848. Its totient is φ = 6396768639360.

The previous prime is 20212012021969. The next prime is 20212012022071. The reversal of 20212012022020 is 2022021021202.

It is an interprime number because it is at equal distance from previous prime (20212012021969) and next prime (20212012022071).

It is a junction number, because it is equal to n+sod(n) for n = 20212012021985 and 20212012022003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5552748736 + ... + 5552752375.

It is an arithmetic number, because the mean of its divisors is an integer number (1088339108976).

Almost surely, 220212012022020 is an apocalyptic number.

20212012022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212012022020 is an abundant number, since it is smaller than the sum of its proper divisors (32028265208828).

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

20212012022020 is a wasteful number, since it uses less digits than its factorization.

20212012022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105501140 (or 11105501138 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20212012022020 its reverse (2022021021202), we get a palindrome (22234033043222).

The spelling of 20212012022020 in words is "twenty trillion, two hundred twelve billion, twelve million, twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 11105501111 22211002222 44422004444 55527505555 77738507777 111055011110 144371514443 155477015554 222110022220 288743028886 310954031108 388692538885 577486057772 721857572215 777385077770 1010600601101 1443715144430 1554770155540 2021201202202 2887430288860 4042402404404 5053003005505 10106006011010 20212012022020