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121112220301 = 177124248253
BaseRepresentation
bin111000011001011011…
…0011101001010001101
3102120121112000020220221
41300302312131022031
53441014212022201
6131345503111341
711515162613122
oct1606266351215
9376545006827
10121112220301
11473aa766756
121b5802a2551
13b5617563a7
145c0cd46749
15323c9524a1
hex1c32d9d28d

121112220301 has 4 divisors (see below), whose sum is σ = 128236468572. Its totient is φ = 113987972032.

The previous prime is 121112220289. The next prime is 121112220331. The reversal of 121112220301 is 103022211121.

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 85000819401 + 36111400900 = 291549^2 + 190030^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112220301 - 227 = 120978002573 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 (121112220331) by changing a digit.

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, 3562124110 + ... + 3562124143.

It is an arithmetic number, because the mean of its divisors is an integer number (32059117143).

Almost surely, 2121112220301 is an apocalyptic number.

It is an amenable number.

121112220301 is a deficient number, since it is larger than the sum of its proper divisors (7124248271).

121112220301 is an equidigital number, since it uses as much as digits as its factorization.

121112220301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124248270.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121112220301 its reverse (103022211121), we get a palindrome (224134431422).

The spelling of 121112220301 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, three hundred one".

Divisors: 1 17 7124248253 121112220301