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12012202012 = 2218521162143
BaseRepresentation
bin10110010111111101…
…11010100000011100
31011000011002002100211
423023332322200130
5144100110431022
65303543102204
7603450014056
oct131376724034
934004062324
1012012202012
115104636188
1223b2a41964
131195847755
1481d4b68d6
154a4880e77
hex2cbfba81c

12012202012 has 12 divisors (see below), whose sum is σ = 21022618176. Its totient is φ = 6005739680.

The previous prime is 12012202009. The next prime is 12012202031. The reversal of 12012202012 is 21020221021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012201983 and 12012202001.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6988 + ... + 155155.

It is an arithmetic number, because the mean of its divisors is an integer number (1751884848).

Almost surely, 212012202012 is an apocalyptic number.

It is an amenable number.

12012202012 is a deficient number, since it is larger than the sum of its proper divisors (9010416164).

12012202012 is a wasteful number, since it uses less digits than its factorization.

12012202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180668 (or 180666 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12012202012 its reverse (21020221021), we get a palindrome (33032423033).

The spelling of 12012202012 in words is "twelve billion, twelve million, two hundred two thousand, twelve".

Divisors: 1 2 4 18521 37042 74084 162143 324286 648572 3003050503 6006101006 12012202012