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12203210220 = 2235216194117
BaseRepresentation
bin10110101110101111…
…00011010111101100
31011111110111022100220
423113113203113230
5144443010211340
65334525051340
7611256401235
oct132727432754
934443438326
1012203210220
1151a2437503
1224469b6b50
1311c62a4066
1483a9d808c
154b6510ed0
hex2d75e35ec

12203210220 has 48 divisors (see below), whose sum is σ = 34185163488. Its totient is φ = 3252648960.

The previous prime is 12203210209. The next prime is 12203210251. The reversal of 12203210220 is 2201230221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12203210220.

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, 82602 + ... + 176718.

It is an arithmetic number, because the mean of its divisors is an integer number (712190906).

Almost surely, 212203210220 is an apocalyptic number.

12203210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203210220 is an abundant number, since it is smaller than the sum of its proper divisors (21981953268).

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

12203210220 is a wasteful number, since it uses less digits than its factorization.

12203210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96290 (or 96288 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12203210220 its reverse (2201230221), we get a palindrome (14404440441).

The spelling of 12203210220 in words is "twelve billion, two hundred three million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2161 4322 6483 8644 10805 12966 21610 25932 32415 43220 64830 94117 129660 188234 282351 376468 470585 564702 941170 1129404 1411755 1882340 2823510 5647020 203386837 406773674 610160511 813547348 1016934185 1220321022 2033868370 2440642044 3050802555 4067736740 6101605110 12203210220