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2212200220 = 225110610011
BaseRepresentation
bin1000001111011011…
…0111111100011100
312201011122102012111
42003312313330130
514012310401340
61003303043404
7105551251216
oct20366677434
95634572174
102212200220
11a3580284a
12518a40564
13293413819
1416db355b6
15ce32baea
hex83db7f1c

2212200220 has 12 divisors (see below), whose sum is σ = 4645620504. Its totient is φ = 884880080.

The previous prime is 2212200217. The next prime is 2212200241. The reversal of 2212200220 is 220022122.

It is a self number, because there is not a number n which added to its sum of digits gives 2212200220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55304986 + ... + 55305025.

It is an arithmetic number, because the mean of its divisors is an integer number (387135042).

Almost surely, 22212200220 is an apocalyptic number.

2212200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212200220 is an abundant number, since it is smaller than the sum of its proper divisors (2433420284).

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

2212200220 is a wasteful number, since it uses less digits than its factorization.

2212200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110610020 (or 110610018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2212200220 is about 47034.0325721705. The cubic root of 2212200220 is about 1302.9911832831.

Adding to 2212200220 its reverse (220022122), we get a palindrome (2432222342).

The spelling of 2212200220 in words is "two billion, two hundred twelve million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 110610011 221220022 442440044 553050055 1106100110 2212200220