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12102010220210 = 251724187546789
BaseRepresentation
bin1011000000011011100000…
…0001010010111010110010
31120211221101220022012202112
42300012320001102322302
53041234404104021320
641423330423045322
72356225044410231
oct260067001227262
946757356265675
1012102010220210
1139464852a8119
12143554a8a0842
1369a2a3814531
142dba519d8b18
1515ec0388aec5
hexb01b8052eb2

12102010220210 has 24 divisors (see below), whose sum is σ = 23140383561540. Its totient is φ = 4556050905344.

The previous prime is 12102010220203. The next prime is 12102010220249. The reversal of 12102010220210 is 1202201020121.

It can be written as a sum of positive squares in 6 ways, for example, as 11041046359249 + 1060963860961 = 3322807^2 + 1030031^2 .

It is a Curzon number.

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, 2093770505 + ... + 2093776284.

Almost surely, 212102010220210 is an apocalyptic number.

12102010220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102010220210 is a deficient number, since it is larger than the sum of its proper divisors (11038373341330).

12102010220210 is a wasteful number, since it uses less digits than its factorization.

12102010220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187546830 (or 4187546813 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12102010220210 its reverse (1202201020121), we get a palindrome (13304211240331).

The spelling of 12102010220210 in words is "twelve trillion, one hundred two billion, ten million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 170 289 578 1445 2890 4187546789 8375093578 20937733945 41875467890 71188295413 142376590826 355941477065 711882954130 1210201022021 2420402044042 6051005110105 12102010220210