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212001201202212 = 223241143632250137
BaseRepresentation
bin110000001101000001100000…
…010010100010010000100100
31000210122010011012222120000200
4300031001200102202100210
5210241411430001432322
62030520001325310500
762440403253353352
oct6015014022422044
91023563135876020
10212001201202212
1161606228245154
121b93b305405430
13913a8207a41b6
143a4ccacd667d2
1519799876868ac
hexc0d0604a2424

212001201202212 has 36 divisors (see below), whose sum is σ = 548962460027436. Its totient is φ = 68943480065280.

The previous prime is 212001201202207. The next prime is 212001201202331. The reversal of 212001201202212 is 212202102100212.

It is a happy number.

212001201202212 is a `hidden beast` number, since 2 + 1 + 200 + 120 + 120 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21388275564516 + 190612925637696 = 4624746^2 + 13806264^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2120012012022122 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71816123593 + ... + 71816126544.

Almost surely, 2212001201202212 is an apocalyptic number.

It is an amenable number.

212001201202212 is an abundant number, since it is smaller than the sum of its proper divisors (336961258825224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212001201202212 is a wasteful number, since it uses less digits than its factorization.

212001201202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143632250188 (or 143632250183 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212001201202212 its reverse (212202102100212), we get a palindrome (424203303302424).

The spelling of 212001201202212 in words is "two hundred twelve trillion, one billion, two hundred one million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 143632250137 287264500274 430896750411 574529000548 861793500822 1292690251233 1723587001644 2585380502466 5170761004932 5888922255617 11777844511234 17666766766851 23555689022468 35333533533702 53000300300553 70667067067404 106000600601106 212001201202212