Search a number
-
+
120202210221 = 387798346477
BaseRepresentation
bin110111111110010011…
…1000010101110101101
3102111021002122221202220
41233330213002232231
53432133231211341
6131115314305553
711453502633402
oct1577447025655
9374232587686
10120202210221
1146a83017705
121b3675882b9
13b4480666a2
145b641422a9
1531d7ae9a66
hex1bfc9c2bad

120202210221 has 16 divisors (see below), whose sum is σ = 160619044224. Its totient is φ = 79960284864.

The previous prime is 120202210217. The next prime is 120202210237. The reversal of 120202210221 is 122012202021.

It is not a de Polignac number, because 120202210221 - 22 = 120202210217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120202210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202210201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563035 + ... + 2609511.

It is an arithmetic number, because the mean of its divisors is an integer number (10038690264).

Almost surely, 2120202210221 is an apocalyptic number.

It is an amenable number.

120202210221 is a deficient number, since it is larger than the sum of its proper divisors (40416834003).

120202210221 is an equidigital number, since it uses as much as digits as its factorization.

120202210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48340.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120202210221 its reverse (122012202021), we get a palindrome (242214412242).

The spelling of 120202210221 in words is "one hundred twenty billion, two hundred two million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 877 983 2631 2949 46477 139431 862091 2586273 40760329 45686891 122280987 137060673 40067403407 120202210221