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12020111122120 = 2351915815935687
BaseRepresentation
bin1010111011101010011001…
…1101000001111011001000
31120120010000012200221221021
42232322212131001323020
53033414141421401440
641321543545122224
72350265362513423
oct256724635017310
946503005627837
1012020111122120
113914778401592
1214216b2a89374
1369265110354a
142d7ac294c9ba
1515ca0d7db84a
hexaeea6741ec8

12020111122120 has 32 divisors (see below), whose sum is σ = 28468684238400. Its totient is φ = 4554989477568.

The previous prime is 12020111122087. The next prime is 12020111122133. The reversal of 12020111122120 is 2122111102021.

It is a super-2 number, since 2×120201111221202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020111122094 and 12020111122103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7907967084 + ... + 7907968603.

It is an arithmetic number, because the mean of its divisors is an integer number (889646382450).

Almost surely, 212020111122120 is an apocalyptic number.

12020111122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020111122120 is an abundant number, since it is smaller than the sum of its proper divisors (16448573116280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12020111122120 is a wasteful number, since it uses less digits than its factorization.

12020111122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15815935717 (or 15815935713 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12020111122120 its reverse (2122111102021), we get a palindrome (14142222224141).

The spelling of 12020111122120 in words is "twelve trillion, twenty billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 15815935687 31631871374 63263742748 79079678435 126527485496 158159356870 300502778053 316318713740 601005556106 632637427480 1202011112212 1502513890265 2404022224424 3005027780530 6010055561060 12020111122120