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12210010220 = 2251816195449
BaseRepresentation
bin10110101111100010…
…11111100001101100
31011111221021210012202
423113301133201230
5200001230311340
65335330521032
7611401242302
oct132761374154
934457253182
1012210010220
1151a6261441
122449136178
1311c7815225
1483b888272
154b6e05c15
hex2d7c5f86c

12210010220 has 48 divisors (see below), whose sum is σ = 25829076000. Its totient is φ = 4848284160.

The previous prime is 12210010193. The next prime is 12210010271. The reversal of 12210010220 is 2201001221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238056 + ... + 2243504.

It is an arithmetic number, because the mean of its divisors is an integer number (538105750).

Almost surely, 212210010220 is an apocalyptic number.

12210010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210010220 is an abundant number, since it is smaller than the sum of its proper divisors (13619065780).

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

12210010220 is a wasteful number, since it uses less digits than its factorization.

12210010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258 (or 6256 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12210010220 its reverse (2201001221), we get a palindrome (14411011441).

The spelling of 12210010220 in words is "twelve billion, two hundred ten million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 181 362 619 724 905 1238 1810 2476 3095 3620 5449 6190 10898 12380 21796 27245 54490 108980 112039 224078 448156 560195 986269 1120390 1972538 2240780 3372931 3945076 4931345 6745862 9862690 13491724 16864655 19725380 33729310 67458620 610500511 1221001022 2442002044 3052502555 6105005110 12210010220