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120122110001 = 412352920249
BaseRepresentation
bin110111111011111010…
…1011111000000110001
3102111001111221102221002
41233313311133000301
53432002230010001
6131103333411345
711451511042145
oct1576765370061
9374044842832
10120122110001
1146a41888183
121b344799b55
13b43459c7ca
145b57651225
1531d0a7646b
hex1bf7d5f031

120122110001 has 12 divisors (see below), whose sum is σ = 123164347500. Its totient is φ = 117153308160.

The previous prime is 120122109983. The next prime is 120122110013. The reversal of 120122110001 is 100011221021.

It can be written as a sum of positive squares in 6 ways, for example, as 74518080400 + 45604029601 = 272980^2 + 213551^2 .

It is a de Polignac number, because none of the positive numbers 2k-120122110001 is a prime.

It is a super-2 number, since 2×1201221100012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120122110301) 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 11 ways as a sum of consecutive naturals, for example, 5922125 + ... + 5942373.

It is an arithmetic number, because the mean of its divisors is an integer number (10263695625).

Almost surely, 2120122110001 is an apocalyptic number.

It is an amenable number.

120122110001 is a deficient number, since it is larger than the sum of its proper divisors (3042237499).

120122110001 is an equidigital number, since it uses as much as digits as its factorization.

120122110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23860 (or 23819 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120122110001 its reverse (100011221021), we get a palindrome (220133331022).

The spelling of 120122110001 in words is "one hundred twenty billion, one hundred twenty-two million, one hundred ten thousand, one".

Divisors: 1 41 1681 3529 20249 144689 830209 5932249 34038569 71458721 2929807561 120122110001