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121210010108 = 221116691650553
BaseRepresentation
bin111000011100010101…
…1011111100111111100
3102120212100000111022122
41300320223133213330
53441214230310413
6131403315102112
711520461041445
oct1607053374774
9376770014278
10121210010108
114744a988680
121b5a8ba1938
13b578aa4b95
145c1bd202cc
15324631c108
hex1c38adf9fc

121210010108 has 24 divisors (see below), whose sum is σ = 231539715120. Its totient is φ = 55062414720.

The previous prime is 121210010099. The next prime is 121210010147. The reversal of 121210010108 is 801010012121.

121210010108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751841 + ... + 898712.

It is an arithmetic number, because the mean of its divisors is an integer number (9647488130).

Almost surely, 2121210010108 is an apocalyptic number.

It is an amenable number.

121210010108 is a deficient number, since it is larger than the sum of its proper divisors (110329705012).

121210010108 is a wasteful number, since it uses less digits than its factorization.

121210010108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652237 (or 1652235 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121210010108 its reverse (801010012121), we get a palindrome (922220022229).

The spelling of 121210010108 in words is "one hundred twenty-one billion, two hundred ten million, ten thousand, one hundred eight".

Divisors: 1 2 4 11 22 44 1669 3338 6676 18359 36718 73436 1650553 3301106 6602212 18156083 36312166 72624332 2754772957 5509545914 11019091828 30302502527 60605005054 121210010108