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12122222110 = 251963801169
BaseRepresentation
bin10110100101000101…
…00110111000011110
31011021211002200120021
423102202212320132
5144311242101420
65322513142354
7606254121265
oct132242467036
934254080507
1012122222110
115160750989
12242385a9ba
1311b2588cbb
1482dd555dc
154ae3647aa
hex2d28a6e1e

12122222110 has 16 divisors (see below), whose sum is σ = 22968421200. Its totient is φ = 4593684096.

The previous prime is 12122222027. The next prime is 12122222117. The reversal of 12122222110 is 1122222121.

It is a happy number.

12122222110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122222117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31900395 + ... + 31900774.

It is an arithmetic number, because the mean of its divisors is an integer number (1435526325).

Almost surely, 212122222110 is an apocalyptic number.

12122222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122222110 is a deficient number, since it is larger than the sum of its proper divisors (10846199090).

12122222110 is a wasteful number, since it uses less digits than its factorization.

12122222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63801195.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122222110 its reverse (1122222121), we get a palindrome (13244444231).

The spelling of 12122222110 in words is "twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred ten".

Divisors: 1 2 5 10 19 38 95 190 63801169 127602338 319005845 638011690 1212222211 2424444422 6061111055 12122222110