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12200002220 = 2257192241393
BaseRepresentation
bin10110101110010110…
…10100001010101100
31011111020110022211002
423113023110022230
5144441200032340
65334332215432
7611220210410
oct132713241254
934436408732
1012200002220
1151a064626a
12244590a578
1311c571cb33
1483a400d40
154b60ca715
hex2d72d42ac

12200002220 has 72 divisors (see below), whose sum is σ = 30902294304. Its totient is φ = 3962691072.

The previous prime is 12200002211. The next prime is 12200002237. The reversal of 12200002220 is 2220000221.

12200002220 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 23 ways as a sum of consecutive naturals, for example, 70157 + ... + 171236.

It is an arithmetic number, because the mean of its divisors is an integer number (429198532).

Almost surely, 212200002220 is an apocalyptic number.

12200002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200002220 is an abundant number, since it is smaller than the sum of its proper divisors (18702292084).

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

12200002220 is a wasteful number, since it uses less digits than its factorization.

12200002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241447 (or 241426 counting only the distinct ones).

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

Adding to 12200002220 its reverse (2220000221), we get a palindrome (14420002441).

The spelling of 12200002220 in words is "twelve billion, two hundred million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 361 380 532 665 722 1330 1444 1805 2527 2660 3610 5054 7220 10108 12635 25270 50540 241393 482786 965572 1206965 1689751 2413930 3379502 4586467 4827860 6759004 8448755 9172934 16897510 18345868 22932335 32105269 33795020 45864670 64210538 87142873 91729340 128421076 160526345 174285746 321052690 348571492 435714365 610000111 642105380 871428730 1220000222 1742857460 2440000444 3050000555 6100001110 12200002220