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212230122231 = 3577467326237
BaseRepresentation
bin1100010110100111100…
…1101010101011110111
3202021210200102021012110
43011221321222223313
511434121402402411
6241255220022103
721222155163021
oct3055171525367
9667720367173
10212230122231
118200840a036
123516b531933
13170230567aa
14a3b44c3011
1557c1eee2a6
hex3169e6aaf7

212230122231 has 16 divisors (see below), whose sum is σ = 283535384544. Its totient is φ = 141205929984.

The previous prime is 212230122199. The next prime is 212230122241. The reversal of 212230122231 is 132221032212.

It is not a de Polignac number, because 212230122231 - 25 = 212230122199 is a prime.

It is a super-3 number, since 3×2122301222313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 212230122198 and 212230122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212230122241) 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 15 ways as a sum of consecutive naturals, for example, 8075845 + ... + 8102081.

It is an arithmetic number, because the mean of its divisors is an integer number (17720961534).

Almost surely, 2212230122231 is an apocalyptic number.

212230122231 is a deficient number, since it is larger than the sum of its proper divisors (71305262313).

212230122231 is a wasteful number, since it uses less digits than its factorization.

212230122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31490.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212230122231 its reverse (132221032212), we get a palindrome (344451154443).

The spelling of 212230122231 in words is "two hundred twelve billion, two hundred thirty million, one hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 3 577 1731 4673 14019 26237 78711 2696321 8088963 15138749 45416247 122605501 367816503 70743374077 212230122231