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200120212220 = 22510006010611
BaseRepresentation
bin1011101001100000011…
…0000001101011111100
3201010112201111002122212
42322120012001223330
511234321233242340
6231533422355552
720313110510645
oct2723006015374
9633481432585
10200120212220
1177963708445
123294ba2bbb8
1315b431bb876
1499860546cc
155313cbca65
hex2e98181afc

200120212220 has 12 divisors (see below), whose sum is σ = 420252445704. Its totient is φ = 80048084880.

The previous prime is 200120212219. The next prime is 200120212297. The reversal of 200120212220 is 22212021002.

It is a junction number, because it is equal to n+sod(n) for n = 200120212195 and 200120212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5003005286 + ... + 5003005325.

It is an arithmetic number, because the mean of its divisors is an integer number (35021037142).

Almost surely, 2200120212220 is an apocalyptic number.

200120212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120212220 is an abundant number, since it is smaller than the sum of its proper divisors (220132233484).

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

200120212220 is a wasteful number, since it uses less digits than its factorization.

200120212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006010620 (or 10006010618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200120212220 its reverse (22212021002), we get a palindrome (222332233222).

The spelling of 200120212220 in words is "two hundred billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10006010611 20012021222 40024042444 50030053055 100060106110 200120212220