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12100122201020 = 2257233370941821
BaseRepresentation
bin1011000000010100011101…
…1111000100101110111100
31120211202112022122220022212
42300011013133010232330
53041222022240413040
641422415220155552
72356130210460140
oct260050737045674
946752468586285
1012100122201020
1139456a6595387
121435102538bb8
1369a062617009
142db912d6d220
1515eb42c47d65
hexb01477c4bbc

12100122201020 has 48 divisors (see below), whose sum is σ = 29164929812928. Its totient is φ = 4130808107520.

The previous prime is 12100122200987. The next prime is 12100122201023. The reversal of 12100122201020 is 2010222100121.

12100122201020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12100122200986 and 12100122201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100122201023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185438291 + ... + 185503530.

It is an arithmetic number, because the mean of its divisors is an integer number (607602704436).

Almost surely, 212100122201020 is an apocalyptic number.

12100122201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100122201020 is an abundant number, since it is smaller than the sum of its proper divisors (17064807611908).

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

12100122201020 is a wasteful number, since it uses less digits than its factorization.

12100122201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370942070 (or 370942068 counting only the distinct ones).

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

Adding to 12100122201020 its reverse (2010222100121), we get a palindrome (14110344301141).

The spelling of 12100122201020 in words is "twelve trillion, one hundred billion, one hundred twenty-two million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 233 466 932 1165 1631 2330 3262 4660 6524 8155 16310 32620 370941821 741883642 1483767284 1854709105 2596592747 3709418210 5193185494 7418836420 10386370988 12982963735 25965927470 51931854940 86429444293 172858888586 345717777172 432147221465 605006110051 864294442930 1210012220102 1728588885860 2420024440204 3025030550255 6050061100510 12100122201020