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11112110220 = 2235185201837
BaseRepresentation
bin10100101100101010…
…10101100010001100
31001200102101200112210
422112111111202030
5140224200011340
65034351030420
7542240243541
oct122625254214
931612350483
1011112110220
114792550972
1221a150b410
13108121b363
14775b34bc8
15450837180
hex29655588c

11112110220 has 24 divisors (see below), whose sum is σ = 31113908784. Its totient is φ = 2963229376.

The previous prime is 11112110213. The next prime is 11112110281. The reversal of 11112110220 is 2201121111.

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 = 11112110196 and 11112110205.

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, 92600859 + ... + 92600978.

It is an arithmetic number, because the mean of its divisors is an integer number (1296412866).

Almost surely, 211112110220 is an apocalyptic number.

11112110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112110220 is an abundant number, since it is smaller than the sum of its proper divisors (20001798564).

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

11112110220 is a wasteful number, since it uses less digits than its factorization.

11112110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185201849 (or 185201847 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11112110220 its reverse (2201121111), we get a palindrome (13313231331).

The spelling of 11112110220 in words is "eleven billion, one hundred twelve million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 185201837 370403674 555605511 740807348 926009185 1111211022 1852018370 2222422044 2778027555 3704036740 5556055110 11112110220