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220212212110220 = 2251116725723322179
BaseRepresentation
bin110010000100100000100110…
…101011011001001110001100
31001212201002012200121201121002
4302010200212223121032030
5212330424102300011340
62100204032121355432
764245543621453341
oct6204404653311614
91055632180551532
10220212212110220
11641915248a7760
1220846728338b78
1395b4bcb960ab5
143c54483bd67c8
151a6d359567715
hexc84826ad938c

220212212110220 has 96 divisors (see below), whose sum is σ = 509481791239680. Its totient is φ = 79287942103040.

The previous prime is 220212212110201. The next prime is 220212212110237. The reversal of 220212212110220 is 22011212212022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220212212110192 and 220212212110201.

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, 2218910 + ... + 21103269.

It is an arithmetic number, because the mean of its divisors is an integer number (5307101992080).

Almost surely, 2220212212110220 is an apocalyptic number.

220212212110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220212212110220 is an abundant number, since it is smaller than the sum of its proper divisors (289269579129460).

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

220212212110220 is a wasteful number, since it uses less digits than its factorization.

220212212110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23322623 (or 23322621 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220212212110220 its reverse (22011212212022), we get a palindrome (242223424322242).

The spelling of 220212212110220 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred twelve million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 167 220 257 334 514 668 835 1028 1285 1670 1837 2570 2827 3340 3674 5140 5654 7348 9185 11308 14135 18370 28270 36740 42919 56540 85838 171676 214595 429190 472109 858380 944218 1888436 2360545 4721090 9442180 23322179 46644358 93288716 116610895 233221790 256543969 466443580 513087938 1026175876 1282719845 2565439690 3894803893 5130879380 5993800003 7789607786 11987600006 15579215572 19474019465 23975200012 29969000015 38948038930 42842842823 59938000030 65931800033 77896077860 85685685646 119876000060 131863600066 171371371292 214214214115 263727200132 329659000165 428428428230 659318000330 856856856460 1000964600501 1318636000660 2001929201002 4003858402004 5004823002505 10009646005010 11010610605511 20019292010020 22021221211022 44042442422044 55053053027555 110106106055110 220212212110220