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12120111012101 = 31679170398179
BaseRepresentation
bin1011000001011110111011…
…1010010101100100000101
31120220200010101010201021012
42300113232322111210011
53042033441404341401
641435522505532005
72360435435533241
oct260275672254405
946820111121235
1012120111012101
113953123771a64
121438b607a4005
1369bbc98a4b91
142dc88b981421
15160412a038bb
hexb05eee95905

12120111012101 has 16 divisors (see below), whose sum is σ = 12516232396800. Its totient is φ = 11724312826800.

The previous prime is 12120111012091. The next prime is 12120111012173. The reversal of 12120111012101 is 10121011102121.

12120111012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12120111012101 - 226 = 12120043903237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120111011101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1481853230 + ... + 1481861408.

It is an arithmetic number, because the mean of its divisors is an integer number (782264524800).

Almost surely, 212120111012101 is an apocalyptic number.

It is an amenable number.

12120111012101 is a deficient number, since it is larger than the sum of its proper divisors (396121384699).

12120111012101 is an equidigital number, since it uses as much as digits as its factorization.

12120111012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22040.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12120111012101 its reverse (10121011102121), we get a palindrome (22241122114222).

The spelling of 12120111012101 in words is "twelve trillion, one hundred twenty billion, one hundred eleven million, twelve thousand, one hundred one".

Divisors: 1 31 6791 7039 8179 210521 218209 253549 47801849 55543589 57571981 1481857319 1721851259 1784731411 390971322971 12120111012101