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120122201 = 313383777
BaseRepresentation
bin1110010100011…
…10101101011001
322101000211200102
413022032231121
5221222402301
615530345145
72656010333
oct712165531
9271024612
10120122201
1161895651
123428b1b5
131bb6a734
1411d4c453
15a82bb6b
hex728eb59

120122201 has 4 divisors (see below), whose sum is σ = 120506292. Its totient is φ = 119738112.

The previous prime is 120122111. The next prime is 120122203. The reversal of 120122201 is 102221021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102221021 = 714603003.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 87403801 = 5720^2 + 9349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120122201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120122203) 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, 191576 + ... + 192201.

It is an arithmetic number, because the mean of its divisors is an integer number (30126573).

Almost surely, 2120122201 is an apocalyptic number.

It is an amenable number.

120122201 is a deficient number, since it is larger than the sum of its proper divisors (384091).

120122201 is an equidigital number, since it uses as much as digits as its factorization.

120122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384090.

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

The square root of 120122201 is about 10960.0274178489. The cubic root of 120122201 is about 493.4097878323.

Adding to 120122201 its reverse (102221021), we get a palindrome (222343222).

The spelling of 120122201 in words is "one hundred twenty million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 313 383777 120122201