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2012121212 = 222791180233
BaseRepresentation
bin111011111101110…
…1000100001111100
312012020011100101212
41313323220201330
513110100334322
6531354423552
7100601514413
oct16773504174
95166140355
102012121212
119428764a2
12481a31bb8
13260b2c58a
1415133247a
15bb9a90e2
hex77ee887c

2012121212 has 12 divisors (see below), whose sum is σ = 3522493296. Its totient is φ = 1005694560.

The previous prime is 2012121179. The next prime is 2012121229. The reversal of 2012121212 is 2121212102.

2012121212 is a modest number, since divided by 121212 gives 2012 as remainder.

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, 78953 + ... + 101280.

It is an arithmetic number, because the mean of its divisors is an integer number (293541108).

Almost surely, 22012121212 is an apocalyptic number.

It is an amenable number.

2012121212 is a deficient number, since it is larger than the sum of its proper divisors (1510372084).

2012121212 is a wasteful number, since it uses less digits than its factorization.

2012121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183028 (or 183026 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2012121212 is about 44856.6741076509. The cubic root of 2012121212 is about 1262.4612201531.

Adding to 2012121212 its reverse (2121212102), we get a palindrome (4133333314).

The spelling of 2012121212 in words is "two billion, twelve million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 2791 5582 11164 180233 360466 720932 503030303 1006060606 2012121212