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120032112221 = 7671671818467
BaseRepresentation
bin110111111001001111…
…0001010111001011101
3102110211020121002011222
41233302132022321131
53431311210042341
6131050400423125
711446336056020
oct1576236127135
9373736532158
10120032112221
11469a5aa854a
121b31a617aa5
13b41ba4b898
145b497051b7
1531c7bea44b
hex1bf278ae5d

120032112221 has 32 divisors (see below), whose sum is σ = 140851156992. Its totient is φ = 100173775680.

The previous prime is 120032112199. The next prime is 120032112227. The reversal of 120032112221 is 122211230021.

It is a cyclic number.

It is not a de Polignac number, because 120032112221 - 214 = 120032095837 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120032112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120032112227) 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 31 ways as a sum of consecutive naturals, for example, 14172230 + ... + 14180696.

It is an arithmetic number, because the mean of its divisors is an integer number (4401598656).

Almost surely, 2120032112221 is an apocalyptic number.

It is an amenable number.

120032112221 is a deficient number, since it is larger than the sum of its proper divisors (20819044771).

120032112221 is a wasteful number, since it uses less digits than its factorization.

120032112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8889.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 120032112221 its reverse (122211230021), we get a palindrome (242243342242).

The spelling of 120032112221 in words is "one hundred twenty billion, thirty-two million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 7 67 167 181 469 1169 1267 8467 11189 12127 30227 59269 78323 84889 211589 567289 1413989 1532527 2025209 3971023 9897923 10727689 14176463 94737263 102679309 255932009 663160841 718755163 1791524063 17147444603 120032112221