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11212330220 = 2257136160621
BaseRepresentation
bin10100111000100111…
…01001010011101100
31001221101222101112122
422130103221103230
5140430324031340
65052331052112
7544565143250
oct123423512354
931841871478
1011212330220
114834082713
12220aba1038
131098c0b030
14785182260
15459531db5
hex29c4e94ec

11212330220 has 48 divisors (see below), whose sum is σ = 28979565888. Its totient is φ = 3548517120.

The previous prime is 11212330189. The next prime is 11212330247. The reversal of 11212330220 is 2203321211.

11212330220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3078491 + ... + 3082130.

It is an arithmetic number, because the mean of its divisors is an integer number (603740956).

Almost surely, 211212330220 is an apocalyptic number.

11212330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212330220 is an abundant number, since it is smaller than the sum of its proper divisors (17767235668).

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

11212330220 is a wasteful number, since it uses less digits than its factorization.

11212330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160650 (or 6160648 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11212330220 its reverse (2203321211), we get a palindrome (13415651431).

Subtracting from 11212330220 its reverse (2203321211), we obtain a palindrome (9009009009).

The spelling of 11212330220 in words is "eleven billion, two hundred twelve million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 6160621 12321242 24642484 30803105 43124347 61606210 80088073 86248694 123212420 160176146 172497388 215621735 320352292 400440365 431243470 560616511 800880730 862486940 1121233022 1601761460 2242466044 2803082555 5606165110 11212330220