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121012201022110 = 251931135911511689
BaseRepresentation
bin11011100000111101011001…
…010000010110001010011110
3120212110122122100120121021021
4123200331121100112022132
5111330130441430201420
61105212123201354354
734326562103002216
oct3340753120261236
9525418570517237
10121012201022110
1135615a93771652
12116a4b853389ba
13526a52b3b1608
1421c5043aa1246
15decc120e97aa
hex6e0f5941629e

121012201022110 has 64 divisors (see below), whose sum is σ = 236700178329600. Its totient is φ = 44374694227200.

The previous prime is 121012201022107. The next prime is 121012201022147. The reversal of 121012201022110 is 11220102210121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79295146 + ... + 80806834.

It is an arithmetic number, because the mean of its divisors is an integer number (3698440286400).

Almost surely, 2121012201022110 is an apocalyptic number.

121012201022110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012201022110 is a deficient number, since it is larger than the sum of its proper divisors (115687977307490).

121012201022110 is a wasteful number, since it uses less digits than its factorization.

121012201022110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525337.

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

Adding to 121012201022110 its reverse (11220102210121), we get a palindrome (132232303232231).

The spelling of 121012201022110 in words is "one hundred twenty-one trillion, twelve billion, two hundred one million, twenty-two thousand, one hundred ten".

Divisors: 1 2 5 10 19 31 38 62 95 155 190 310 589 1178 2945 5890 13591 27182 67955 135910 258229 421321 516458 842642 1291145 1511689 2106605 2582290 3023378 4213210 7558445 8005099 15116890 16010198 28722091 40025495 46862359 57444182 80050990 93724718 143610455 234311795 287220910 468623590 890384821 1780769642 4451924105 8903848210 20545365199 41090730398 102726825995 205453651990 390361938781 636906321169 780723877562 1273812642338 1951809693905 3184531605845 3903619387810 6369063211690 12101220102211 24202440204422 60506100511055 121012201022110