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12022011001001 = 19477617241413
BaseRepresentation
bin1010111011110001011110…
…1100011111100010101001
31120120021220121122210210202
42232330113230133202221
53033432034304013001
641322500254121545
72350363432310051
oct256742754374251
946507817583722
1012022011001001
113915562884721
121421b431b02b5
136928948c3c31
142d7c22dc4561
1515cac04c396b
hexaef17b1f8a9

12022011001001 has 4 divisors (see below), whose sum is σ = 12022628261892. Its totient is φ = 12021393740112.

The previous prime is 12022011000983. The next prime is 12022011001009. The reversal of 12022011001001 is 10010011022021.

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 3903386538601 + 8118624462400 = 1975699^2 + 2849320^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022011001001 - 234 = 12004831131817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12022011001009) 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, 308601230 + ... + 308640183.

It is an arithmetic number, because the mean of its divisors is an integer number (3005657065473).

Almost surely, 212022011001001 is an apocalyptic number.

It is an amenable number.

12022011001001 is a deficient number, since it is larger than the sum of its proper divisors (617260891).

12022011001001 is an equidigital number, since it uses as much as digits as its factorization.

12022011001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617260890.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12022011001001 its reverse (10010011022021), we get a palindrome (22032022023022).

The spelling of 12022011001001 in words is "twelve trillion, twenty-two billion, eleven million, one thousand, one".

Divisors: 1 19477 617241413 12022011001001