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121012202212 = 221117792777393
BaseRepresentation
bin111000010110011100…
…0111010101011100100
3102120100112210210220021
41300230320322223210
53440313110432322
6131331531244524
711512536514156
oct1605470725344
9376315723807
10121012202212
1147359262680
121b5528a9744
13b546b075a5
145bdd94cad6
153233c974c7
hex1c2ce3aae4

121012202212 has 96 divisors (see below), whose sum is σ = 248637150720. Its totient is φ = 50923192320.

The previous prime is 121012202191. The next prime is 121012202261. The reversal of 121012202212 is 212202210121.

It is a happy number.

121012202212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16364788 + ... + 16372180.

It is an arithmetic number, because the mean of its divisors is an integer number (2589970320).

Almost surely, 2121012202212 is an apocalyptic number.

It is an amenable number.

121012202212 is an abundant number, since it is smaller than the sum of its proper divisors (127624948508).

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

121012202212 is a wasteful number, since it uses less digits than its factorization.

121012202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781 (or 7779 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121012202212 its reverse (212202210121), we get a palindrome (333214412333).

The spelling of 121012202212 in words is "one hundred twenty-one billion, twelve million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 11 17 22 34 44 68 79 158 187 277 316 374 554 748 869 1108 1343 1738 2686 3047 3476 4709 5372 6094 7393 9418 12188 14773 14786 18836 21883 29546 29572 43766 51799 59092 81323 87532 103598 125681 162646 207196 240713 251362 325292 372011 481426 502724 584047 744022 962852 1168094 1382491 1488044 2047861 2336188 2764982 4092121 4095722 5529964 6424517 8184242 8191444 9928799 12849034 16368484 19857598 22526471 25698068 34813637 39715196 45052942 69627274 90105884 109216789 139254548 161781019 218433578 323562038 382950007 436867156 647124076 765900014 1531800028 1779591209 2750277323 3559182418 5500554646 7118364836 11001109292 30253050553 60506101106 121012202212