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12222020000 = 2554611101
BaseRepresentation
bin10110110000111110…
…10011100110100000
31011112202212221112102
423120133103212200
5200012314120000
65340440145532
7611605312241
oct133037234640
934482787472
1012222020000
115202014583
1224511682a8
1311ca15b7c8
1483d2d2cc8
154b7ec93d5
hex2d87d39a0

12222020000 has 60 divisors (see below), whose sum is σ = 30068051706. Its totient is φ = 4888800000.

The previous prime is 12222019987. The next prime is 12222020023. The reversal of 12222020000 is 2022221.

12222020000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 17073424 + 12204946576 = 4132^2 + 110476^2 .

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 9 ways as a sum of consecutive naturals, for example, 285551 + ... + 325550.

Almost surely, 212222020000 is an apocalyptic number.

12222020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222020000 is an abundant number, since it is smaller than the sum of its proper divisors (17846031706).

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

12222020000 is an frugal number, since it uses more digits than its factorization.

12222020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611131 (or 611108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 12222020000 its reverse (2022221), we get a palindrome (12224042221).

The spelling of 12222020000 in words is "twelve billion, two hundred twenty-two million, twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 611101 1222202 2444404 3055505 4888808 6111010 9777616 12222020 15277525 19555232 24444040 30555050 48888080 61110100 76387625 97776160 122220200 152775250 244440400 305550500 381938125 488880800 611101000 763876250 1222202000 1527752500 2444404000 3055505000 6111010000 12222020000