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12110202021 = 341791912433
BaseRepresentation
bin10110100011101001…
…10000010010100101
31011020222111000002210
423101310300102211
5144300202431041
65321403354033
7606050006301
oct132164602245
934228430083
1012110202021
115154991025
12241b822919
1311acc3ab18
1482c506d01
154ad28d016
hex2d1d304a5

12110202021 has 16 divisors (see below), whose sum is σ = 16544183040. Its totient is φ = 7874926080.

The previous prime is 12110202019. The next prime is 12110202037. The reversal of 12110202021 is 12020201121.

It is not a de Polignac number, because 12110202021 - 21 = 12110202019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12110201988 and 12110202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110202001) 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, 967821 + ... + 980253.

It is an arithmetic number, because the mean of its divisors is an integer number (1034011440).

Almost surely, 212110202021 is an apocalyptic number.

It is an amenable number.

12110202021 is a deficient number, since it is larger than the sum of its proper divisors (4433981019).

12110202021 is a wasteful number, since it uses less digits than its factorization.

12110202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20396.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12110202021 its reverse (12020201121), we get a palindrome (24130403142).

The spelling of 12110202021 in words is "twelve billion, one hundred ten million, two hundred two thousand, twenty-one".

Divisors: 1 3 41 123 7919 12433 23757 37299 324679 509753 974037 1529259 98456927 295370781 4036734007 12110202021