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120212200221 = 3595351126923
BaseRepresentation
bin110111111110100110…
…1001001101100011101
3102111021210110111110220
41233331031021230131
53432143310401341
6131120312351553
711453653561641
oct1577515115435
9374253414426
10120212200221
1146a88720303
121b36a9a55b9
13b44a153829
145b655c2c21
1531d891ea66
hex1bfd349b1d

120212200221 has 16 divisors (see below), whose sum is σ = 163031339520. Its totient is φ = 78767793200.

The previous prime is 120212200219. The next prime is 120212200267. The reversal of 120212200221 is 122002212021.

It is a cyclic number.

It is not a de Polignac number, because 120212200221 - 21 = 120212200219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120212200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212200291) 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, 883666 + ... + 1010588.

It is an arithmetic number, because the mean of its divisors is an integer number (10189458720).

Almost surely, 2120212200221 is an apocalyptic number.

It is an amenable number.

120212200221 is a deficient number, since it is larger than the sum of its proper divisors (42819139299).

120212200221 is a wasteful number, since it uses less digits than its factorization.

120212200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132336.

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

Adding to 120212200221 its reverse (122002212021), we get a palindrome (242214412242).

The spelling of 120212200221 in words is "one hundred twenty billion, two hundred twelve million, two hundred thousand, two hundred twenty-one".

Divisors: 1 3 59 177 5351 16053 126923 315709 380769 947127 7488457 22465371 679164973 2037494919 40070733407 120212200221