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2112110012100 = 2235211640033337
BaseRepresentation
bin11110101111000011100…
…100010010011011000100
321110220201120121112210110
4132233003210102123010
5234101100130341400
64254142343353020
7305411024612214
oct36570344223304
97426646545713
102112110012100
11744817048250
122a1411452770
1312422bc4633a
1474325da8244
1539e1a468e50
hex1ebc39126c4

2112110012100 has 72 divisors (see below), whose sum is σ = 6666587248608. Its totient is φ = 512026668800.

The previous prime is 2112110012071. The next prime is 2112110012101. The reversal of 2112110012100 is 12100112112.

It is a super-2 number, since 2×21121100121002 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2112110012101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320013369 + ... + 320019968.

It is an arithmetic number, because the mean of its divisors is an integer number (92591489564).

Almost surely, 22112110012100 is an apocalyptic number.

2112110012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112110012100 is an abundant number, since it is smaller than the sum of its proper divisors (4554477236508).

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

2112110012100 is a wasteful number, since it uses less digits than its factorization.

2112110012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640033365 (or 640033358 counting only the distinct ones).

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

Adding to 2112110012100 its reverse (12100112112), we get a palindrome (2124210124212).

The spelling of 2112110012100 in words is "two trillion, one hundred twelve billion, one hundred ten million, twelve thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 150 165 220 275 300 330 550 660 825 1100 1650 3300 640033337 1280066674 1920100011 2560133348 3200166685 3840200022 6400333370 7040366707 7680400044 9600500055 12800666740 14080733414 16000833425 19201000110 21121100121 28161466828 32001666850 35201833535 38402000220 42242200242 48002500275 64003333700 70403667070 84484400484 96005000550 105605500605 140807334140 176009167675 192010001100 211211001210 352018335350 422422002420 528027503025 704036670700 1056055006050 2112110012100