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2020211210220 = 2235713136717761
BaseRepresentation
bin11101011001011101111…
…110001011011111101100
321011010111222210201011120
4131121131332023133230
5231044343032211340
64144023333220540
7265645500646140
oct35313576133754
97133458721146
102020211210220
1170984861a205
12287644791750
1311867491c968
146dac8c35220
153783c5694d0
hex1d65df8b7ec

2020211210220 has 96 divisors (see below), whose sum is σ = 6514024720896. Its totient is φ = 458237644800.

The previous prime is 2020211210177. The next prime is 2020211210287. The reversal of 2020211210220 is 220121120202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2020211210220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18303861 + ... + 18413900.

It is an arithmetic number, because the mean of its divisors is an integer number (67854424176).

Almost surely, 22020211210220 is an apocalyptic number.

2020211210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020211210220 is an abundant number, since it is smaller than the sum of its proper divisors (4493813510676).

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

2020211210220 is a wasteful number, since it uses less digits than its factorization.

2020211210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36717911 (or 36717909 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2020211210220 its reverse (220121120202), we get a palindrome (2240332330422).

The spelling of 2020211210220 in words is "two trillion, twenty billion, two hundred eleven million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 131 140 210 262 393 420 524 655 786 917 1310 1572 1834 1965 2620 2751 3668 3930 4585 5502 7860 9170 11004 13755 18340 27510 55020 36717761 73435522 110153283 146871044 183588805 220306566 257024327 367177610 440613132 514048654 550766415 734355220 771072981 1028097308 1101532830 1285121635 1542145962 2203065660 2570243270 3084291924 3855364905 4810026691 5140486540 7710729810 9620053382 14430080073 15421459620 19240106764 24050133455 28860160146 33670186837 48100266910 57720320292 67340373674 72150400365 96200533820 101010560511 134680747348 144300800730 168350934185 202021121022 288601601460 336701868370 404042242044 505052802555 673403736740 1010105605110 2020211210220