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120110123221220 = 22511545955105551
BaseRepresentation
bin11011010011110101010001…
…001110101000000011100100
3120202021102020000001022001102
4123103311101032220003210
5111220341013021034340
61103241455011415232
734204445552133146
oct3323652116500344
9522242200038042
10120110123221220
11352a8465326240
121157a1912b4518
13520344a30aa32
14219350a76ac96
15dd451748d215
hex6d3d513a80e4

120110123221220 has 24 divisors (see below), whose sum is σ = 275161373198208. Its totient is φ = 43676408444000.

The previous prime is 120110123221217. The next prime is 120110123221237. The reversal of 120110123221220 is 22122321011021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 120110123221192 and 120110123221201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272977552556 + ... + 272977552995.

It is an arithmetic number, because the mean of its divisors is an integer number (11465057216592).

Almost surely, 2120110123221220 is an apocalyptic number.

120110123221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120110123221220 is an abundant number, since it is smaller than the sum of its proper divisors (155051249976988).

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

120110123221220 is a wasteful number, since it uses less digits than its factorization.

120110123221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545955105571 (or 545955105569 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 120110123221220 its reverse (22122321011021), we get a palindrome (142232444232241).

The spelling of 120110123221220 in words is "one hundred twenty trillion, one hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 545955105551 1091910211102 2183820422204 2729775527755 5459551055510 6005506161061 10919102111020 12011012322122 24022024644244 30027530805305 60055061610610 120110123221220