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120110022121 = 211569241811
BaseRepresentation
bin110111111011100011…
…1010111110111101001
3102111000200012022110211
41233313013113313221
53431441131201441
6131102222341121
711451303225415
oct1576707276751
9374020168424
10120110022121
1146a35a813a1
121b34072a7a1
13b431c2980b
145b55bc5d45
1531ce989a81
hex1bf71d7de9

120110022121 has 4 divisors (see below), whose sum is σ = 120679264144. Its totient is φ = 119540780100.

The previous prime is 120110022113. The next prime is 120110022169. The reversal of 120110022121 is 121220011021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121220011021 = 213467567863.

It is a cyclic number.

It is not a de Polignac number, because 120110022121 - 23 = 120110022113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120110022521) 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, 284620695 + ... + 284621116.

It is an arithmetic number, because the mean of its divisors is an integer number (30169816036).

Almost surely, 2120110022121 is an apocalyptic number.

It is an amenable number.

120110022121 is a deficient number, since it is larger than the sum of its proper divisors (569242023).

120110022121 is an equidigital number, since it uses as much as digits as its factorization.

120110022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569242022.

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

Adding to 120110022121 its reverse (121220011021), we get a palindrome (241330033142).

It can be divided in two parts, 1201100 and 22121, that added together give a palindrome (1223221).

The spelling of 120110022121 in words is "one hundred twenty billion, one hundred ten million, twenty-two thousand, one hundred twenty-one".

Divisors: 1 211 569241811 120110022121