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12301012212220 = 22517193160160257
BaseRepresentation
bin1011001100000000110101…
…1101101001100111111100
31121112222001200122211200001
42303000031131221213330
53103014433111242340
642055001302244044
72406501356421034
oct263001535514774
947488050584601
1012301012212220
113a12914786126
121468028126624
136b2c99143124
1430752d32a8c4
15164e9e3c429a
hexb300d7699fc

12301012212220 has 96 divisors (see below), whose sum is σ = 28792612537920. Its totient is φ = 4387022438400.

The previous prime is 12301012212179. The next prime is 12301012212227. The reversal of 12301012212220 is 2221221010321.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301012212227) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 204112332 + ... + 204172588.

It is an arithmetic number, because the mean of its divisors is an integer number (299923047270).

Almost surely, 212301012212220 is an apocalyptic number.

12301012212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12301012212220 is an abundant number, since it is smaller than the sum of its proper divisors (16491600325700).

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

12301012212220 is a wasteful number, since it uses less digits than its factorization.

12301012212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91903 (or 91901 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12301012212220 its reverse (2221221010321), we get a palindrome (14522233222541).

The spelling of 12301012212220 in words is "twelve trillion, three hundred one billion, twelve million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 380 646 1292 1615 3230 6460 31601 60257 63202 120514 126404 158005 241028 301285 316010 537217 600419 602570 632020 1024369 1074434 1144883 1200838 1205140 2048738 2148868 2289766 2401676 2686085 3002095 4097476 4579532 5121845 5372170 5724415 6004190 10207123 10243690 10744340 11448830 12008380 19463011 20414246 20487380 22897660 38926022 40828492 51035615 77852044 97315055 102071230 194630110 204142460 389260220 1904181457 3808362914 7616725828 9520907285 19041814570 32371084769 36179447683 38083629140 64742169538 72358895366 129484339076 144717790732 161855423845 180897238415 323710847690 361794476830 615050610611 647421695380 723588953660 1230101221222 2460202442444 3075253053055 6150506106110 12301012212220