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212000012011 = 19217916991931
BaseRepresentation
bin1100010101110000101…
…1110111011011101011
3202021012122102110022201
43011130023313123223
511433134000341021
6241220320001031
721213362240524
oct3053413673353
9667178373281
10212000012011
11819aa5308a7
1235106460177
1316cb74892b8
14a391b0384b
1557abbe8591
hex315c2f76eb

212000012011 has 24 divisors (see below), whose sum is σ = 225244152000. Its totient is φ = 199499174640.

The previous prime is 212000012009. The next prime is 212000012033. The reversal of 212000012011 is 110210000212.

It is not a de Polignac number, because 212000012011 - 21 = 212000012009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212000012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109786716 + ... + 109788646.

It is an arithmetic number, because the mean of its divisors is an integer number (9385173000).

Almost surely, 2212000012011 is an apocalyptic number.

212000012011 is a deficient number, since it is larger than the sum of its proper divisors (13244139989).

212000012011 is a wasteful number, since it uses less digits than its factorization.

212000012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847 (or 3828 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212000012011 its reverse (110210000212), we get a palindrome (322210012223).

The spelling of 212000012011 in words is "two hundred twelve billion, twelve thousand, eleven".

Divisors: 1 19 179 361 1699 1931 3401 32281 36689 64619 304121 345649 613339 697091 3280769 5778299 6567331 62334611 109787681 124779289 587257651 1184357609 11157895369 212000012011