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1212201110010 = 2351112728923911
BaseRepresentation
bin10001101000111100110…
…100010000100111111010
311021212220101020201101210
4101220330310100213322
5124330041441010020
62324513312423550
7153402321266232
oct21507464204772
94255811221353
101212201110010
11428100a19690
12176b23847bb6
138a405304b27
1442956b36cc2
15217eae343e0
hex11a3cd109fa

1212201110010 has 64 divisors (see below), whose sum is σ = 3198753275904. Its totient is φ = 291553012800.

The previous prime is 1212201109967. The next prime is 1212201110023. The reversal of 1212201110010 is 100111022121.

It is a super-2 number, since 2×12122011100102 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14420046 + ... + 14503865.

It is an arithmetic number, because the mean of its divisors is an integer number (49980519936).

Almost surely, 21212201110010 is an apocalyptic number.

1212201110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212201110010 is an abundant number, since it is smaller than the sum of its proper divisors (1986552165894).

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

1212201110010 is a wasteful number, since it uses less digits than its factorization.

1212201110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28924059.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1212201110010 its reverse (100111022121), we get a palindrome (1312312132131).

The spelling of 1212201110010 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred ten thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 127 165 254 330 381 635 762 1270 1397 1905 2794 3810 4191 6985 8382 13970 20955 41910 28923911 57847822 86771733 144619555 173543466 289239110 318163021 433858665 636326042 867717330 954489063 1590815105 1908978126 3181630210 3673336697 4772445315 7346673394 9544890630 11020010091 18366683485 22040020182 36733366970 40406703667 55100050455 80813407334 110200100910 121220111001 202033518335 242440222002 404067036670 606100555005 1212201110010