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220112221002220 = 225731638531084313
BaseRepresentation
bin110010000011000011011110…
…101111100101100111101100
31001212100112010010201010212201
4302003003132233211213230
5212322304312034032340
62100050054113111244
764235404013201131
oct6203033657454754
91055315103633781
10220112221002220
1164153083495318
122082b281558524
1395a8654c457c1
143c4d6ba00c588
151a6a955ed779a
hexc830debe59ec

220112221002220 has 96 divisors (see below), whose sum is σ = 471995430363072. Its totient is φ = 86204781785088.

The previous prime is 220112221002209. The next prime is 220112221002227. The reversal of 220112221002220 is 22200122211022.

It is a super-2 number, since 2×2201122210022202 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220112221002227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202454784 + ... + 203539096.

It is an arithmetic number, because the mean of its divisors is an integer number (4916619066282).

Almost surely, 2220112221002220 is an apocalyptic number.

220112221002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220112221002220 is an abundant number, since it is smaller than the sum of its proper divisors (251883209360852).

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

220112221002220 is a wasteful number, since it uses less digits than its factorization.

220112221002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085411 (or 1085409 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220112221002220 its reverse (22200122211022), we get a palindrome (242312343213242).

The spelling of 220112221002220 in words is "two hundred twenty trillion, one hundred twelve billion, two hundred twenty-one million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 73 146 163 292 326 365 652 730 815 853 1460 1630 1706 3260 3412 4265 8530 11899 17060 23798 47596 59495 62269 118990 124538 139039 237980 249076 278078 311345 556156 622690 695195 1084313 1245380 1390390 2168626 2780780 4337252 5421565 10149847 10843130 20299694 21686260 40599388 50749235 79154849 101498470 158309698 176743019 202996940 316619396 353486038 395774245 706972076 791548490 883715095 924918989 1583096980 1767430190 1849837978 3534860380 3699675956 4624594945 9249189890 12902240387 18498379780 25804480774 51608961548 64511201935 67519086197 129022403870 135038172394 150761795207 258044807740 270076344788 301523590414 337595430985 603047180828 675190861970 753808976035 1350381723940 1507617952070 3015235904140 11005611050111 22011222100222 44022444200444 55028055250555 110056110501110 220112221002220