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212020211212 = 223110191118583
BaseRepresentation
bin1100010101110101100…
…0111010111000001100
3202021021001102200102021
43011131120322320030
511433204133224322
6241222320535524
721214026026365
oct3053530727014
9667231380367
10212020211212
1181a0a977857
12351111815a4
1316cbb70c2a4
14a394680b6c
1557ad8884c7
hex315d63ae0c

212020211212 has 48 divisors (see below), whose sum is σ = 387241795584. Its totient is φ = 101457720000.

The previous prime is 212020211191. The next prime is 212020211231. The reversal of 212020211212 is 212112020212.

It is a happy number.

212020211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 11400073 + ... + 11418655.

It is an arithmetic number, because the mean of its divisors is an integer number (8067537408).

Almost surely, 2212020211212 is an apocalyptic number.

It is an amenable number.

212020211212 is a deficient number, since it is larger than the sum of its proper divisors (175221584372).

212020211212 is a wasteful number, since it uses less digits than its factorization.

212020211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19630 (or 19628 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212020211212 its reverse (212112020212), we get a palindrome (424132231424).

The spelling of 212020211212 in words is "two hundred twelve billion, twenty million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 31 62 101 124 202 404 911 1822 3131 3644 6262 12524 18583 28241 37166 56482 74332 92011 112964 184022 368044 576073 1152146 1876883 2304292 2852341 3753766 5704682 7507532 11409364 16929113 33858226 58183373 67716452 116366746 232733492 524802503 1049605006 1709840413 2099210012 3419680826 6839361652 53005052803 106010105606 212020211212