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121002200201 = 379319267019
BaseRepresentation
bin111000010110001001…
…0110000110010001001
3102120022211222122201102
41300230102300302021
53440303030401301
6131330533031145
711512355505611
oct1605422606211
9376284878642
10121002200201
1147353650a53
121b54b4854b5
13b544a14b3c
145bdc4a7a41
153232e6db6b
hex1c2c4b0c89

121002200201 has 4 divisors (see below), whose sum is σ = 121321467600. Its totient is φ = 120682932804.

The previous prime is 121002200197. The next prime is 121002200311. The reversal of 121002200201 is 102002200121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102002200121 = 973310480037.

It is a cyclic number.

It is not a de Polignac number, because 121002200201 - 22 = 121002200197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121002202201) 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, 159633131 + ... + 159633888.

It is an arithmetic number, because the mean of its divisors is an integer number (30330366900).

Almost surely, 2121002200201 is an apocalyptic number.

It is an amenable number.

121002200201 is a deficient number, since it is larger than the sum of its proper divisors (319267399).

121002200201 is an equidigital number, since it uses as much as digits as its factorization.

121002200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319267398.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121002200201 its reverse (102002200121), we get a palindrome (223004400322).

The spelling of 121002200201 in words is "one hundred twenty-one billion, two million, two hundred thousand, two hundred one".

Divisors: 1 379 319267019 121002200201