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12422124220 = 2251162119091
BaseRepresentation
bin10111001000110101…
…01001001010111100
31012001201102021220211
423210122221022330
5200420030433340
65412345122204
7616555212412
oct134432511274
935051367824
1012422124220
1152a4a68870
1224a8189364
13122c75137c
1485bb012b2
154ca8545ea
hex2e46a92bc

12422124220 has 48 divisors (see below), whose sum is σ = 28465670016. Its totient is φ = 4515912000.

The previous prime is 12422124203. The next prime is 12422124223. The reversal of 12422124220 is 2242122421.

12422124220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×124221242202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12422124191 and 12422124200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422124223) 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 15 ways as a sum of consecutive naturals, for example, 1361875 + ... + 1370965.

It is an arithmetic number, because the mean of its divisors is an integer number (593034792).

Almost surely, 212422124220 is an apocalyptic number.

12422124220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12422124220 is an abundant number, since it is smaller than the sum of its proper divisors (16043545796).

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

12422124220 is a wasteful number, since it uses less digits than its factorization.

12422124220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15322 (or 15320 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12422124220 its reverse (2242122421), we get a palindrome (14664246641).

The spelling of 12422124220 in words is "twelve billion, four hundred twenty-two million, one hundred twenty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 6211 9091 12422 18182 24844 31055 36364 45455 62110 68321 90910 100001 124220 136642 181820 200002 273284 341605 400004 500005 683210 1000010 1366420 2000020 56464201 112928402 225856804 282321005 564642010 621106211 1129284020 1242212422 2484424844 3105531055 6211062110 12422124220