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10201212000020 = 22513713831269183
BaseRepresentation
bin1001010001110010011110…
…0111100001011100010100
31100010020010000002220210102
42110130213213201130110
52314114040233000040
633410212212313232
72102004354206126
oct224344747413424
940106100086712
1010201212000020
113283345257828
121189091312818
1358cc7c5b0b72
14273a54185216
1512a5549c3515
hex947279e1714

10201212000020 has 48 divisors (see below), whose sum is σ = 21580554498048. Its totient is φ = 4050392321280.

The previous prime is 10201211999987. The next prime is 10201212000043. The reversal of 10201212000020 is 2000021210201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10201211999965 and 10201212000010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37762349 + ... + 38031531.

It is an arithmetic number, because the mean of its divisors is an integer number (449594885376).

Almost surely, 210201212000020 is an apocalyptic number.

10201212000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201212000020 is an abundant number, since it is smaller than the sum of its proper divisors (11379342498028).

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

10201212000020 is a wasteful number, since it uses less digits than its factorization.

10201212000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283160 (or 283158 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10201212000020 its reverse (2000021210201), we get a palindrome (12201233210221).

The spelling of 10201212000020 in words is "ten trillion, two hundred one billion, two hundred twelve million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 13831 27662 55324 69155 138310 269183 276620 538366 1076732 1345915 1894847 2691830 3789694 5383660 7579388 9474235 18948470 36878071 37896940 73756142 147512284 184390355 368780710 737561420 3723070073 7446140146 14892280292 18615350365 37230700730 74461401460 510060600001 1020121200002 2040242400004 2550303000005 5100606000010 10201212000020