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12010220210 = 253173788713
BaseRepresentation
bin10110010111101110…
…10110101010110010
31011000000100101211202
423023313112222302
5144044104021320
65303432411202
7603424121162
oct131367265262
934000311752
1012010220210
11510350222a
1223b2246b02
1311953026a1
1481d11c5a2
154a45ddb75
hex2cbdd6ab2

12010220210 has 16 divisors (see below), whose sum is σ = 21686598936. Its totient is φ = 4788931968.

The previous prime is 12010220177. The next prime is 12010220249. The reversal of 12010220210 is 1202201021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6565698841 + 5444521369 = 81029^2 + 73787^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12010220191 and 12010220200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1891187 + ... + 1897526.

Almost surely, 212010220210 is an apocalyptic number.

12010220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12010220210 is a deficient number, since it is larger than the sum of its proper divisors (9676378726).

12010220210 is a wasteful number, since it uses less digits than its factorization.

12010220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789037.

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

Adding to 12010220210 its reverse (1202201021), we get a palindrome (13212421231).

The spelling of 12010220210 in words is "twelve billion, ten million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 317 634 1585 3170 3788713 7577426 18943565 37887130 1201022021 2402044042 6005110105 12010220210