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212200044121 = 1343990738317
BaseRepresentation
bin1100010110100000011…
…0111011011001011001
3202021201120211010210101
43011220012323121121
511434041202402441
6241252223215401
721221341420522
oct3055006733131
9667646733711
10212200044121
1181aa243599a
1235161447561
1317019a550b0
14a3b04d3849
1557be55c231
hex31681bb659

212200044121 has 16 divisors (see below), whose sum is σ = 233867322304. Its totient is φ = 191297381184.

The previous prime is 212200044107. The next prime is 212200044127. The reversal of 212200044121 is 121440002212.

212200044121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212200044121 - 233 = 203610109529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212200044127) by changing a digit.

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, 5518855 + ... + 5557171.

It is an arithmetic number, because the mean of its divisors is an integer number (14616707644).

Almost surely, 2212200044121 is an apocalyptic number.

It is an amenable number.

212200044121 is a deficient number, since it is larger than the sum of its proper divisors (21667278183).

212200044121 is a wasteful number, since it uses less digits than its factorization.

212200044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48280.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212200044121 its reverse (121440002212), we get a palindrome (333640046333).

The spelling of 212200044121 in words is "two hundred twelve billion, two hundred million, forty-four thousand, one hundred twenty-one".

Divisors: 1 13 43 559 9907 38317 128791 426001 498121 1647631 5538013 21419203 379606519 4934884747 16323080317 212200044121