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121220033233 = 1397714996367
BaseRepresentation
bin111000011100101000…
…1101110101011010001
3102120220000212201110111
41300321101232223101
53441224312030413
6131404314001321
711520642165415
oct1607121565321
9376800781414
10121220033233
1147455604152
121b5b0416241
13b57aba4120
145c1d3acd45
15324714bd3d
hex1c3946ead1

121220033233 has 16 divisors (see below), whose sum is σ = 130785984000. Its totient is φ = 111688770816.

The previous prime is 121220033189. The next prime is 121220033251. The reversal of 121220033233 is 332330022121.

It is a cyclic number.

It is not a de Polignac number, because 121220033233 - 29 = 121220032721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220033633) 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, 19035616 + ... + 19041982.

It is an arithmetic number, because the mean of its divisors is an integer number (8174124000).

Almost surely, 2121220033233 is an apocalyptic number.

121220033233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121220033233 is a deficient number, since it is larger than the sum of its proper divisors (9565950767).

121220033233 is a wasteful number, since it uses less digits than its factorization.

121220033233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8856.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 121220033233 its reverse (332330022121), we get a palindrome (453550055354).

The spelling of 121220033233 in words is "one hundred twenty-one billion, two hundred twenty million, thirty-three thousand, two hundred thirty-three".

Divisors: 1 13 977 1499 6367 12701 19487 82771 1464523 6220559 9544133 19038799 80867267 124073729 9324617941 121220033233