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122313200220 = 22325679517779
BaseRepresentation
bin111000111101001101…
…1110101001001011100
3102200201012212100122200
41301322123311021130
54000444134401340
6132105004211500
711560015022241
oct1617233651134
9380635770580
10122313200220
1147966681742
121b856539b90
13b6c35018b3
145cc464d5c8
1532ad0d3330
hex1c7a6f525c

122313200220 has 36 divisors (see below), whose sum is σ = 371016707880. Its totient is φ = 32616853344.

The previous prime is 122313200167. The next prime is 122313200237. The reversal of 122313200220 is 22002313221.

122313200220 is a `hidden beast` number, since 12 + 231 + 3 + 200 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122313200193 and 122313200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339758710 + ... + 339759069.

Almost surely, 2122313200220 is an apocalyptic number.

122313200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122313200220 is an abundant number, since it is smaller than the sum of its proper divisors (248703507660).

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

122313200220 is a wasteful number, since it uses less digits than its factorization.

122313200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679517794 (or 679517789 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 122313200220 its reverse (22002313221), we get a palindrome (144315513441).

The spelling of 122313200220 in words is "one hundred twenty-two billion, three hundred thirteen million, two hundred thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 679517779 1359035558 2038553337 2718071116 3397588895 4077106674 6115660011 6795177790 8154213348 10192766685 12231320022 13590355580 20385533370 24462640044 30578300055 40771066740 61156600110 122313200220