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101220211010212 = 22713956367368639
BaseRepresentation
bin10111000000111100101010…
…101110001010101010100100
3111021101120001112121100002221
4113000330222232022222210
5101231342443004311322
6555135531211242124
730214630121454310
oct2700745256125244
9437346045540087
10101220211010212
112a285283345398
12b4291a3a49344
134463042a49198
141add12766cb40
15ba7e83a079c7
hex5c0f2ab8aaa4

101220211010212 has 96 divisors (see below), whose sum is σ = 204565474713600. Its totient is φ = 42927000302592.

The previous prime is 101220211010189. The next prime is 101220211010213. The reversal of 101220211010212 is 212010112022101.

It is a super-2 number, since 2×1012202110102122 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101220211010213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1474640589 + ... + 1474709227.

It is an arithmetic number, because the mean of its divisors is an integer number (2130890361600).

Almost surely, 2101220211010212 is an apocalyptic number.

It is an amenable number.

101220211010212 is an abundant number, since it is smaller than the sum of its proper divisors (103345263703388).

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

101220211010212 is a wasteful number, since it uses less digits than its factorization.

101220211010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70025 (or 70023 counting only the distinct ones).

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

Adding to 101220211010212 its reverse (212010112022101), we get a palindrome (313230323032313).

The spelling of 101220211010212 in words is "one hundred one trillion, two hundred twenty billion, two hundred eleven million, ten thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 139 278 556 563 673 973 1126 1346 1946 2252 2692 3892 3941 4711 7882 9422 15764 18844 68639 78257 93547 137278 156514 187094 274556 313028 374188 378899 480473 547799 654829 757798 960946 1095598 1309658 1515596 1921892 2191196 2619316 2652293 5304586 9540821 10609172 19081642 38163284 38643757 46194047 52666961 66785747 77287514 92388094 105333922 133571494 154575028 184776188 210667844 267142988 270506299 323358329 368668727 541012598 646716658 737337454 1082025196 1293433316 1474674908 5371482223 6420972533 10742964446 12841945066 21485928892 25683890132 26007248461 37600375561 44946807731 52014496922 75200751122 89893615462 104028993844 150401502244 179787230924 182050739227 364101478454 728202956908 3615007536079 7230015072158 14460030144316 25305052752553 50610105505106 101220211010212