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2122212012011 = 71324196767681
BaseRepresentation
bin11110111000011101101…
…100010110111111101011
321111212210121022022111022
4132320131230112333223
5234232242233341021
64302533012323055
7306216251316050
oct36703554267753
97455717268438
102122212012011
1174903039a303
122a337061348b
1312517bac7690
1474a038bd027
153a30c2741ab
hex1ee1db16feb

2122212012011 has 16 divisors (see below), whose sum is σ = 2622791252928. Its totient is φ = 1672145510400.

The previous prime is 2122212012001. The next prime is 2122212012091. The reversal of 2122212012011 is 1102102122212.

It is a cyclic number.

It is not a de Polignac number, because 2122212012011 - 230 = 2121138270187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122212012001) 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, 48361910 + ... + 48405771.

It is an arithmetic number, because the mean of its divisors is an integer number (163924453308).

Almost surely, 22122212012011 is an apocalyptic number.

2122212012011 is a deficient number, since it is larger than the sum of its proper divisors (500579240917).

2122212012011 is a wasteful number, since it uses less digits than its factorization.

2122212012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96767942.

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

Adding to 2122212012011 its reverse (1102102122212), we get a palindrome (3224314134223).

The spelling of 2122212012011 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, eleven".

Divisors: 1 7 13 91 241 1687 3133 21931 96767681 677373767 1257979853 8805858971 23321011121 163247077847 303173144573 2122212012011