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120220210001 = 756115900041
BaseRepresentation
bin110111111110110101…
…1101101001101010001
3102111022100112102211102
41233331223231031101
53432202333210001
6131121200154145
711454111632033
oct1577553551521
9374270472742
10120220210001
1146a921a1161
121b371608955
13b44b9c9548
145b666a9c53
1531d94a2e6b
hex1bfdaed351

120220210001 has 4 divisors (see below), whose sum is σ = 120236117604. Its totient is φ = 120204302400.

The previous prime is 120220209961. The next prime is 120220210013. The reversal of 120220210001 is 100012022021.

It is a happy number.

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 82360390225 + 37859819776 = 286985^2 + 194576^2 .

It is a cyclic number.

It is not a de Polignac number, because 120220210001 - 26 = 120220209937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120220210081) 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, 7942460 + ... + 7957581.

It is an arithmetic number, because the mean of its divisors is an integer number (30059029401).

Almost surely, 2120220210001 is an apocalyptic number.

It is an amenable number.

120220210001 is a deficient number, since it is larger than the sum of its proper divisors (15907603).

120220210001 is an equidigital number, since it uses as much as digits as its factorization.

120220210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15907602.

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

Adding to 120220210001 its reverse (100012022021), we get a palindrome (220232232022).

The spelling of 120220210001 in words is "one hundred twenty billion, two hundred twenty million, two hundred ten thousand, one".

Divisors: 1 7561 15900041 120220210001