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12100101210 = 2325371936151
BaseRepresentation
bin10110100010011100…
…01110010001011010
31011020021110211101200
423101032032101122
5144240111214320
65320403055030
7605565110001
oct132116162132
934207424350
1012100101210
11514a21214a
122418371476
1311aab12402
1482b037c38
154ac445290
hex2d138e45a

12100101210 has 48 divisors (see below), whose sum is σ = 31469592960. Its totient is φ = 3225736800.

The previous prime is 12100101197. The next prime is 12100101253. The reversal of 12100101210 is 1210100121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12100101192 and 12100101201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316635 + ... + 352785.

It is an arithmetic number, because the mean of its divisors is an integer number (655616520).

Almost surely, 212100101210 is an apocalyptic number.

12100101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12100101210 is an abundant number, since it is smaller than the sum of its proper divisors (19369491750).

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

12100101210 is a wasteful number, since it uses less digits than its factorization.

12100101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39883 (or 39880 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12100101210 its reverse (1210100121), we get a palindrome (13310201331).

The spelling of 12100101210 in words is "twelve billion, one hundred million, one hundred one thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 3719 7438 11157 18595 22314 33471 36151 37190 55785 66942 72302 108453 111570 167355 180755 216906 325359 334710 361510 542265 650718 1084530 1626795 3253590 134445569 268891138 403336707 672227845 806673414 1210010121 1344455690 2016683535 2420020242 4033367070 6050050605 12100101210