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120110101220 = 2256005505061
BaseRepresentation
bin110111111011100011…
…1101011001011100100
3102111000200100022222102
41233313013223023210
53431441141214340
6131102224151232
711451304005134
oct1576707531344
9374020308872
10120110101220
1146a3602586a
121b340768518
13b431c56815
145b55c06ac4
1531ce9a3215
hex1bf71eb2e4

120110101220 has 12 divisors (see below), whose sum is σ = 252231212604. Its totient is φ = 48044040480.

The previous prime is 120110101219. The next prime is 120110101229. The reversal of 120110101220 is 22101011021.

It can be written as a sum of positive squares in 2 ways, for example, as 78776771584 + 41333329636 = 280672^2 + 203306^2 .

It is not an unprimeable number, because it can be changed into a prime (120110101229) 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 3 ways as a sum of consecutive naturals, for example, 3002752511 + ... + 3002752550.

It is an arithmetic number, because the mean of its divisors is an integer number (21019267717).

Almost surely, 2120110101220 is an apocalyptic number.

120110101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120110101220 is an abundant number, since it is smaller than the sum of its proper divisors (132121111384).

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

120110101220 is a wasteful number, since it uses less digits than its factorization.

120110101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005505070 (or 6005505068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120110101220 its reverse (22101011021), we get a palindrome (142211112241).

The spelling of 120110101220 in words is "one hundred twenty billion, one hundred ten million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6005505061 12011010122 24022020244 30027525305 60055050610 120110101220