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2102112112210 = 25111910113737253
BaseRepresentation
bin11110100101101111101…
…001010100111001010010
321102221220210210121110221
4132211233221110321102
5233420111200042320
64245410313543254
7304605204065065
oct36455751247122
97387823717427
102102112112210
11740556538070
1229b4a1114b2a
131232c7812a46
1473a582308dc
1539a328733aa
hex1e96fa54e52

2102112112210 has 128 divisors (see below), whose sum is σ = 4391857117440. Its totient is φ = 716381568000.

The previous prime is 2102112112181. The next prime is 2102112112231. The reversal of 2102112112210 is 122112112012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 289822944 + ... + 289830196.

It is an arithmetic number, because the mean of its divisors is an integer number (34311383730).

Almost surely, 22102112112210 is an apocalyptic number.

2102112112210 is an abundant number, since it is smaller than the sum of its proper divisors (2289745005230).

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

2102112112210 is a wasteful number, since it uses less digits than its factorization.

2102112112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8764.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2102112112210 its reverse (122112112012), we get a palindrome (2224224224222).

The spelling of 2102112112210 in words is "two trillion, one hundred two billion, one hundred twelve million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 11 19 22 38 55 95 101 110 190 202 209 418 505 1010 1045 1111 1373 1919 2090 2222 2746 3838 5555 6865 7253 9595 11110 13730 14506 15103 19190 21109 26087 30206 36265 42218 52174 72530 75515 79783 105545 130435 137807 138673 151030 159566 211090 260870 275614 277346 286957 398915 573914 689035 693365 732553 797830 1378070 1386730 1434785 1465106 1515877 1525403 2634787 2869570 3031754 3050806 3662765 5269574 7325530 7579385 7627015 8058083 9958369 13173935 13918507 15158770 15254030 16116166 19916738 26347870 27837014 28982657 40290415 49791845 57965314 69592535 80580830 99583690 109542059 139185070 144913285 153103577 189209011 219084118 289826570 306207154 378418022 547710295 765517885 946045055 1005795269 1095420590 1531035770 1892090110 2011590538 2081299121 4162598242 5028976345 10057952690 10406495605 11063747959 19110110111 20812991210 22127495918 38220220222 55318739795 95550550555 110637479590 191101101110 210211211221 420422422442 1051056056105 2102112112210