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2112211202120 = 235101951820687
BaseRepresentation
bin11110101111001001100…
…110010011000001001000
321110220222122000112101222
4132233021212103001020
5234101302031431440
64254200400301212
7305413363661645
oct36571146230110
97426878015358
102112211202120
11744869181868
122a143b311808
13124246bb56a6
14743355c8dcc
1539e242a62b5
hex1ebc9993048

2112211202120 has 32 divisors (see below), whose sum is σ = 4757139158400. Its totient is φ = 844055333568.

The previous prime is 2112211202119. The next prime is 2112211202183. The reversal of 2112211202120 is 212021122112.

It is a super-2 number, since 2×21122112021202 (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 25869584 + ... + 25951103.

It is an arithmetic number, because the mean of its divisors is an integer number (148660598700).

Almost surely, 22112211202120 is an apocalyptic number.

2112211202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112211202120 is an abundant number, since it is smaller than the sum of its proper divisors (2644927956280).

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

2112211202120 is a wasteful number, since it uses less digits than its factorization.

2112211202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51821717 (or 51821713 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112211202120 its reverse (212021122112), we get a palindrome (2324232324232).

The spelling of 2112211202120 in words is "two trillion, one hundred twelve billion, two hundred eleven million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1019 2038 4076 5095 8152 10190 20380 40760 51820687 103641374 207282748 259103435 414565496 518206870 1036413740 2072827480 52805280053 105610560106 211221120212 264026400265 422442240424 528052800530 1056105601060 2112211202120