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12110012101220 = 22511291898121019
BaseRepresentation
bin1011000000111001010011…
…1110000011001001100100
31120212201001120020212220212
42300032110332003021210
53041402301044214340
641431132431114552
72356630250313335
oct260162476031144
946781046225825
1012110012101220
11394991113a820
121437002672a58
1369ac7a565877
142dc1b063228c
15160021108a65
hexb0394f83264

12110012101220 has 48 divisors (see below), whose sum is σ = 28699589822400. Its totient is φ = 4251791080320.

The previous prime is 12110012101219. The next prime is 12110012101237. The reversal of 12110012101220 is 2210121001121.

It is a junction number, because it is equal to n+sod(n) for n = 12110012101195 and 12110012101204.

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 15 ways as a sum of consecutive naturals, for example, 949054130 + ... + 949066889.

It is an arithmetic number, because the mean of its divisors is an integer number (597908121300).

Almost surely, 212110012101220 is an apocalyptic number.

12110012101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110012101220 is an abundant number, since it is smaller than the sum of its proper divisors (16589577721180).

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

12110012101220 is a wasteful number, since it uses less digits than its factorization.

12110012101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898121068 (or 1898121066 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110012101220 its reverse (2210121001121), we get a palindrome (14320133102341).

The spelling of 12110012101220 in words is "twelve trillion, one hundred ten billion, twelve million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 29 44 55 58 110 116 145 220 290 319 580 638 1276 1595 3190 6380 1898121019 3796242038 7592484076 9490605095 18981210190 20879331209 37962420380 41758662418 55045509551 83517324836 104396656045 110091019102 208793312090 220182038204 275227547755 417586624180 550455095510 605500605061 1100910191020 1211001210122 2422002420244 3027503025305 6055006050610 12110012101220