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101212212010 = 25713176797649
BaseRepresentation
bin101111001000010110…
…1111100101100101010
3100200020122122002111211
41132100231330230222
53124240311241020
6114255104543334
710212063415210
oct1362055745452
9320218562454
10101212212010
1139a18722a08
1217747921b4a
13970c9bb560
144c8204ccb0
15297588885a
hex1790b7cb2a

101212212010 has 128 divisors (see below), whose sum is σ = 240959577600. Its totient is φ = 29697490944.

The previous prime is 101212212001. The next prime is 101212212029. The reversal of 101212212010 is 10212212101.

101212212010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 987666 + ... + 1085314.

It is an arithmetic number, because the mean of its divisors is an integer number (1882496700).

Almost surely, 2101212212010 is an apocalyptic number.

101212212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101212212010 is an abundant number, since it is smaller than the sum of its proper divisors (139747365590).

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

101212212010 is a wasteful number, since it uses less digits than its factorization.

101212212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97760.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101212212010 its reverse (10212212101), we get a palindrome (111424424111).

Subtracting from 101212212010 its reverse (10212212101), we obtain a palindrome (90999999909).

The spelling of 101212212010 in words is "one hundred one billion, two hundred twelve million, two hundred twelve thousand, ten".

Divisors: 1 2 5 7 10 13 14 17 26 34 35 65 67 70 85 91 119 130 134 170 182 221 238 335 442 455 469 595 670 871 910 938 1105 1139 1190 1547 1742 2210 2278 2345 3094 4355 4690 5695 6097 7735 7973 8710 11390 12194 14807 15470 15946 29614 30485 39865 60970 74035 79730 97649 103649 148070 195298 207298 488245 518245 683543 976490 1036490 1269437 1367086 1660033 2538874 3320066 3417715 6347185 6542483 6835430 8300165 8886059 11620231 12694370 13084966 16600330 17772118 21580429 23240462 32712415 43160858 44430295 45797381 58101155 65424830 85052279 88860590 91594762 107902145 111222211 116202310 151063003 170104558 215804290 222444422 228986905 302126006 425261395 457973810 556111055 595365953 755315015 778555477 850522790 1112222110 1190731906 1445888743 1510630030 1557110954 2891777486 2976829765 3892777385 5953659530 7229443715 7785554770 10121221201 14458887430 20242442402 50606106005 101212212010