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120110221220 = 22511618950091
BaseRepresentation
bin110111111011100100…
…0001000011110100100
3102111000200120102120212
41233313020020132210
53431441204034340
6131102230514552
711451305015033
oct1576710103644
9374020512525
10120110221220
1146a360a7a40
121b340805a58
13b431c99322
145b55c3871a
1531ce9c8a65
hex1bf72087a4

120110221220 has 48 divisors (see below), whose sum is σ = 279672474816. Its totient is φ = 42960432000.

The previous prime is 120110221207. The next prime is 120110221291. The reversal of 120110221220 is 22122011021.

It is a junction number, because it is equal to n+sod(n) for n = 120110221195 and 120110221204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4461626 + ... + 4488465.

It is an arithmetic number, because the mean of its divisors is an integer number (5826509892).

Almost surely, 2120110221220 is an apocalyptic number.

120110221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120110221220 is an abundant number, since it is smaller than the sum of its proper divisors (159562253596).

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

120110221220 is a wasteful number, since it uses less digits than its factorization.

120110221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950172 (or 8950170 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120110221220 its reverse (22122011021), we get a palindrome (142232232241).

The spelling of 120110221220 in words is "one hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 61 110 122 220 244 305 610 671 1220 1342 2684 3355 6710 13420 8950091 17900182 35800364 44750455 89500910 98451001 179001820 196902002 393804004 492255005 545955551 984510010 1091911102 1969020020 2183822204 2729777755 5459555510 6005511061 10919111020 12011022122 24022044244 30027555305 60055110610 120110221220