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1212210120113 = 23177912962441
BaseRepresentation
bin10001101000111101010…
…110101000010110110001
311021212221000012110221022
4101220331112220112301
5124330101242320423
62324514233505225
7153402461003606
oct21507526502661
94255830173838
101212210120113
11428106013053
12176b26872215
138a40713ac55
14429580006ad
15217ebb13dc8
hex11a3d5a85b1

1212210120113 has 8 divisors (see below), whose sum is σ = 1264986433536. Its totient is φ = 1159439767200.

The previous prime is 1212210120089. The next prime is 1212210120119. The reversal of 1212210120113 is 3110210122121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212210120113 - 214 = 1212210103729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1212210120091 and 1212210120100.

It is not an unprimeable number, because it can be changed into a prime (1212210120119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072028 + ... + 1890413.

It is an arithmetic number, because the mean of its divisors is an integer number (158123304192).

Almost surely, 21212210120113 is an apocalyptic number.

It is an amenable number.

1212210120113 is a deficient number, since it is larger than the sum of its proper divisors (52776313423).

1212210120113 is a wasteful number, since it uses less digits than its factorization.

1212210120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980255.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1212210120113 its reverse (3110210122121), we get a palindrome (4322420242234).

The spelling of 1212210120113 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, one hundred thirteen".

Divisors: 1 23 17791 409193 2962441 68136143 52704787831 1212210120113