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222220012012 = 22278919919327
BaseRepresentation
bin1100111011110101011…
…0000100100111101100
3210020120220011020201021
43032331112010213230
512120101310341022
6250030402023524
722024550636065
oct3167526044754
9706526136637
10222220012012
1186274449099
1237099047ba4
1317c5591418b
14aa8117356c
155ba90617c7
hex33bd5849ec

222220012012 has 12 divisors (see below), whose sum is σ = 389024475840. Its totient is φ = 111070161776.

The previous prime is 222220011997. The next prime is 222220012081. The reversal of 222220012012 is 210210022222.

It is a super-2 number, since 2×2222200120122 (a number of 23 digits) contains 22 as substring.

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, 9948508 + ... + 9970819.

It is an arithmetic number, because the mean of its divisors is an integer number (32418706320).

Almost surely, 2222220012012 is an apocalyptic number.

It is an amenable number.

222220012012 is a deficient number, since it is larger than the sum of its proper divisors (166804463828).

222220012012 is a wasteful number, since it uses less digits than its factorization.

222220012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19922120 (or 19922118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222220012012 its reverse (210210022222), we get a palindrome (432430034234).

The spelling of 222220012012 in words is "two hundred twenty-two billion, two hundred twenty million, twelve thousand, twelve".

Divisors: 1 2 4 2789 5578 11156 19919327 39838654 79677308 55555003003 111110006006 222220012012