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1212120100022 = 2131923281443857
BaseRepresentation
bin10001101000110111111…
…111001110110010110110
311021212200201210222120212
4101220313333032302312
5124324410221200042
62324501300225422
7153400315565426
oct21506777166266
94255621728525
101212120100022
1142806a218687
12176b0069b272
138a3c15acb20
144294a08a486
15217e3c81482
hex11a37fcecb6

1212120100022 has 128 divisors (see below), whose sum is σ = 2165757834240. Its totient is φ = 503420037120.

The previous prime is 1212120100019. The next prime is 1212120100043. The reversal of 1212120100022 is 2200010212121.

It is a congruent number.

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, 1414375418 + ... + 1414376274.

It is an arithmetic number, because the mean of its divisors is an integer number (16919983080).

Almost surely, 21212120100022 is an apocalyptic number.

1212120100022 is a deficient number, since it is larger than the sum of its proper divisors (953637734218).

1212120100022 is a wasteful number, since it uses less digits than its factorization.

1212120100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

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

Adding to 1212120100022 its reverse (2200010212121), we get a palindrome (3412130312143).

The spelling of 1212120100022 in words is "one trillion, two hundred twelve billion, one hundred twenty million, one hundred thousand, twenty-two".

Divisors: 1 2 13 19 23 26 38 46 247 281 299 437 443 494 562 598 857 874 886 1714 3653 5339 5681 5759 6463 7306 8417 10189 10678 11141 11362 11518 12926 16283 16834 19711 20378 22282 32566 39422 69407 84019 109421 122797 124483 132457 138814 168038 193591 211679 218842 240817 245594 248966 256243 264914 374509 379651 387182 423358 481634 512486 749018 759302 1596361 1618279 2365177 2516683 2863109 3130621 3192722 3236558 4575523 4730354 4868617 4935463 5033366 5538791 5726218 6261242 7213369 8731973 9151046 9737234 9870926 11077582 14426738 17463946 30747301 37220417 54399071 59481799 61494602 72004283 74440834 93773797 105237029 106681931 108798142 113515649 118963598 144008566 165907487 187547594 210474058 213363862 227031298 331814974 707187923 1368081377 1386865103 1414375846 2026956689 2156797331 2453684413 2736162754 2773730206 4053913378 4313594662 4907368826 26350436957 31897897369 46620003847 52700873914 63795794738 93240007694 606060050011 1212120100022