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12022132010221 = 18166420618841
BaseRepresentation
bin1010111011110001111011…
…1010000110110011101101
31120120022020001100201020201
42232330132322012303231
53033432311243311341
641322520255513501
72350366432003444
oct256743672066355
946508201321221
1012022132010221
113915615115743
121421b77828891
136928b39b2318
142d7c350c3d5b
1515cacae28331
hexaef1ee86ced

12022132010221 has 4 divisors (see below), whose sum is σ = 12088552629244. Its totient is φ = 11955711391200.

The previous prime is 12022132010201. The next prime is 12022132010281. The reversal of 12022132010221 is 12201023122021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1691596776996 + 10330535233225 = 1300614^2 + 3214115^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022132010221 - 225 = 12022098455789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022132010201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33210309240 + ... + 33210309601.

It is an arithmetic number, because the mean of its divisors is an integer number (3022138157311).

Almost surely, 212022132010221 is an apocalyptic number.

It is an amenable number.

12022132010221 is a deficient number, since it is larger than the sum of its proper divisors (66420619023).

12022132010221 is an equidigital number, since it uses as much as digits as its factorization.

12022132010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66420619022.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12022132010221 its reverse (12201023122021), we get a palindrome (24223155132242).

The spelling of 12022132010221 in words is "twelve trillion, twenty-two billion, one hundred thirty-two million, ten thousand, two hundred twenty-one".

Divisors: 1 181 66420618841 12022132010221