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120202020221220 = 22335731799476249
BaseRepresentation
bin11011010101001010110110…
…101101110111000100100100
3120202121012102110110120222000
4123111022312231313010210
5111223342214134034340
61103352013515205300
734214211054553020
oct3325126655670444
9522535373416860
10120202020221220
1135333432833523
1211593b59446830
13520c004153202
142197b47591380
15dd6ae5133d30
hex6d52b6b77124

120202020221220 has 96 divisors (see below), whose sum is σ = 427384960800000. Its totient is φ = 27474747478272.

The previous prime is 120202020221197. The next prime is 120202020221237. The reversal of 120202020221220 is 22122020202021.

120202020221220 is a `hidden beast` number, since 1 + 2 + 0 + 20 + 202 + 0 + 221 + 220 = 666.

120202020221220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 120202020221193 and 120202020221202.

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, 15899734345 + ... + 15899741904.

It is an arithmetic number, because the mean of its divisors is an integer number (4451926675000).

Almost surely, 2120202020221220 is an apocalyptic number.

120202020221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120202020221220 is an abundant number, since it is smaller than the sum of its proper divisors (307182940578780).

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

120202020221220 is a wasteful number, since it uses less digits than its factorization.

120202020221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31799476274 (or 31799476266 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 120202020221220 its reverse (22122020202021), we get a palindrome (142324040423241).

The spelling of 120202020221220 in words is "one hundred twenty trillion, two hundred two billion, twenty million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 105 108 126 135 140 180 189 210 252 270 315 378 420 540 630 756 945 1260 1890 3780 31799476249 63598952498 95398428747 127197904996 158997381245 190796857494 222596333743 286195286241 317994762490 381593714988 445192667486 476992143735 572390572482 635989524980 667789001229 858585858723 890385334972 953984287470 1112981668715 1144781144964 1335578002458 1430976431205 1717171717446 1907968574940 2003367003687 2225963337430 2671156004916 2861952862410 3338945006145 3434343434892 4006734007374 4292929293615 4451926674860 5723905724820 6010101011061 6677890012290 8013468014748 8585858587230 10016835018435 12020202022122 13355780024580 17171717174460 20033670036870 24040404044244 30050505055305 40067340073740 60101010110610 120202020221220