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20101210212200 = 23521323336140639
BaseRepresentation
bin1001001001000001011010…
…11111101000011101101000
32122011122201220022222221112
410210200231133220131220
510113314234303242300
6110430211332125452
74143156504440555
oct444405537503550
978148656288845
1020101210212200
11644a96a144507
1223078ba766888
13b2a6c7751c70
144d6c91d09a2c
1524cd2a476e35
hex12482d7e8768

20101210212200 has 96 divisors (see below), whose sum is σ = 52518613593600. Its totient is φ = 7099290274560.

The previous prime is 20101210212133. The next prime is 20101210212331. The reversal of 20101210212200 is 221201210102.

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, 168010520 + ... + 168130119.

It is an arithmetic number, because the mean of its divisors is an integer number (547068891600).

Almost surely, 220101210212200 is an apocalyptic number.

20101210212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101210212200 is an abundant number, since it is smaller than the sum of its proper divisors (32417403381400).

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

20101210212200 is a wasteful number, since it uses less digits than its factorization.

20101210212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336140691 (or 336140682 counting only the distinct ones).

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

Adding to 20101210212200 its reverse (221201210102), we get a palindrome (20322411422302).

The spelling of 20101210212200 in words is "twenty trillion, one hundred one billion, two hundred ten million, two hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 20 23 25 26 40 46 50 52 65 92 100 104 115 130 184 200 230 260 299 325 460 520 575 598 650 920 1150 1196 1300 1495 2300 2392 2600 2990 4600 5980 7475 11960 14950 29900 59800 336140639 672281278 1344562556 1680703195 2689125112 3361406390 4369828307 6722812780 7731234697 8403515975 8739656614 13445625560 15462469394 16807031950 17479313228 21849141535 30924938788 33614063900 34958626456 38656173485 43698283070 61849877576 67228127800 77312346970 87396566140 100506051061 109245707675 154624693940 174793132280 193280867425 201012102122 218491415350 309249387880 386561734850 402024204244 436982830700 502530255305 773123469700 804048408488 873965661400 1005060510610 1546246939400 2010121021220 2512651276525 4020242042440 5025302553050 10050605106100 20101210212200