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120112122020 = 225112392284369
BaseRepresentation
bin110111111011100111…
…1011000100010100100
3102111000211010222222212
41233313033120202210
53431442200401040
6131102335342552
711451330122522
oct1576717304244
9374024128885
10120112122020
1146a37186050
121b341381a58
13b4324b3567
145b561b1312
1531cec51d65
hex1bf73d88a4

120112122020 has 48 divisors (see below), whose sum is σ = 276317395200. Its totient is φ = 43494366720.

The previous prime is 120112121999. The next prime is 120112122023. The reversal of 120112122020 is 20221211021.

It is a super-2 number, since 2×1201121220202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120112121986 and 120112122004.

It is not an unprimeable number, because it can be changed into a prime (120112122023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089605 + ... + 1194764.

It is an arithmetic number, because the mean of its divisors is an integer number (5756612400).

Almost surely, 2120112122020 is an apocalyptic number.

120112122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120112122020 is an abundant number, since it is smaller than the sum of its proper divisors (156205273180).

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

120112122020 is a wasteful number, since it uses less digits than its factorization.

120112122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284628 (or 2284626 counting only the distinct ones).

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

Adding to 120112122020 its reverse (20221211021), we get a palindrome (140333333041).

The spelling of 120112122020 in words is "one hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 239 478 956 1195 2390 2629 4780 5258 10516 13145 26290 52580 2284369 4568738 9137476 11421845 22843690 25128059 45687380 50256118 100512236 125640295 251280590 502561180 545964191 1091928382 2183856764 2729820955 5459641910 6005606101 10919283820 12011212202 24022424404 30028030505 60056061010 120112122020