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122001212011 = 7179111125379
BaseRepresentation
bin111000110011111010…
…1101100001001101011
3102122220110210201021211
41301213311230021223
53444324302241021
6132014021213551
711546206122520
oct1614765541153
9378813721254
10122001212011
114781655a348
121b789b612b7
13b6739972a3
145c95039147
153290a073e1
hex1c67d6c26b

122001212011 has 16 divisors (see below), whose sum is σ = 147793904640. Its totient is φ = 98313022080.

The previous prime is 122001211973. The next prime is 122001212017. The reversal of 122001212011 is 110212100221.

It is not a de Polignac number, because 122001212011 - 27 = 122001211883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122001211982 and 122001212000.

It is not an unprimeable number, because it can be changed into a prime (122001212017) 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, 454281 + ... + 671098.

It is an arithmetic number, because the mean of its divisors is an integer number (9237119040).

Almost surely, 2122001212011 is an apocalyptic number.

122001212011 is a deficient number, since it is larger than the sum of its proper divisors (25792692629).

122001212011 is a wasteful number, since it uses less digits than its factorization.

122001212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126314.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122001212011 its reverse (110212100221), we get a palindrome (232213312232).

The spelling of 122001212011 in words is "one hundred twenty-two billion, one million, two hundred twelve thousand, eleven".

Divisors: 1 7 17 119 911 6377 15487 108409 1125379 7877653 19131443 133920101 1025220269 7176541883 17428744573 122001212011