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121122102211 = 11231151415937
BaseRepresentation
bin111000011001101110…
…0001001101111000011
3102120122012121022100121
41300303130021233003
53441024224232321
6131350455001111
711515342611265
oct1606334115703
9376565538317
10121122102211
11474052a6120
121b583669197
13b563806286
145c10399b35
15323d755441
hex1c33709bc3

121122102211 has 16 divisors (see below), whose sum is σ = 137998245888. Its totient is φ = 105231808000.

The previous prime is 121122102203. The next prime is 121122102229. The reversal of 121122102211 is 112201221121.

It is not a de Polignac number, because 121122102211 - 23 = 121122102203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122102251) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 83235 + ... + 499171.

It is an arithmetic number, because the mean of its divisors is an integer number (8624890368).

Almost surely, 2121122102211 is an apocalyptic number.

121122102211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121122102211 is a deficient number, since it is larger than the sum of its proper divisors (16876143677).

121122102211 is a wasteful number, since it uses less digits than its factorization.

121122102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417122.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121122102211 its reverse (112201221121), we get a palindrome (233323323332).

The spelling of 121122102211 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred eleven".

Divisors: 1 11 23 253 1151 12661 26473 291203 415937 4575307 9566551 105232061 478743487 5266178357 11011100201 121122102211