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120110221021 = 717981954263
BaseRepresentation
bin110111111011100100…
…0001000011011011101
3102111000200120102022111
41233313020020123131
53431441204033041
6131102230514021
711451305014330
oct1576710103335
9374020512274
10120110221021
1146a360a787a
121b340805911
13b431c991cb
145b55c38617
1531ce9c8981
hex1bf72086dd

120110221021 has 8 divisors (see below), whose sum is σ = 137276601984. Its totient is φ = 102945784560.

The previous prime is 120110221019. The next prime is 120110221031. The reversal of 120110221021 is 120122011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120110221021 - 21 = 120110221019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120110220992 and 120110221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351265 + ... + 602998.

It is an arithmetic number, because the mean of its divisors is an integer number (17159575248).

Almost surely, 2120110221021 is an apocalyptic number.

It is an amenable number.

120110221021 is a deficient number, since it is larger than the sum of its proper divisors (17166380963).

120110221021 is an equidigital number, since it uses as much as digits as its factorization.

120110221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972251.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120110221021 its reverse (120122011021), we get a palindrome (240232232042).

The spelling of 120110221021 in words is "one hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, twenty-one".

Divisors: 1 7 17981 125867 954263 6679841 17158603003 120110221021