Search a number
-
+
120110012220 = 223511181984867
BaseRepresentation
bin110111111011100011…
…1010101011100111100
3102111000200011210220010
41233313013111130330
53431441130342340
6131102222223220
711451303154512
oct1576707253474
9374020153803
10120110012220
1146a35a74a10
121b340724b10
13b431c25163
145b55bc24b2
1531ce986b80
hex1bf71d573c

120110012220 has 48 divisors (see below), whose sum is σ = 366881493888. Its totient is φ = 29117578560.

The previous prime is 120110012207. The next prime is 120110012227. The reversal of 120110012220 is 22210011021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120110012196 and 120110012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110012227) 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, 90991774 + ... + 90993093.

It is an arithmetic number, because the mean of its divisors is an integer number (7643364456).

Almost surely, 2120110012220 is an apocalyptic number.

120110012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120110012220 is an abundant number, since it is smaller than the sum of its proper divisors (246771481668).

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

120110012220 is a wasteful number, since it uses less digits than its factorization.

120110012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181984890 (or 181984888 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120110012220 its reverse (22210011021), we get a palindrome (142320023241).

The spelling of 120110012220 in words is "one hundred twenty billion, one hundred ten million, twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 181984867 363969734 545954601 727939468 909924335 1091909202 1819848670 2001833537 2183818404 2729773005 3639697340 4003667074 5459546010 6005500611 8007334148 10009167685 10919092020 12011001222 20018335370 24022002444 30027503055 40036670740 60055006110 120110012220