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12120211001111 is a prime number
BaseRepresentation
bin1011000001011111010011…
…0111110000111100010111
31120220200101100021200101212
42300113310313300330113
53042034143004013421
641435540441012035
72360441061451343
oct260276467607427
946820340250355
1012120211001111
113953175156204
121438b8a18401b
1369bc14513685
142dc89ad6c623
1516041b6a4e5b
hexb05f4df0f17

12120211001111 has 2 divisors, whose sum is σ = 12120211001112. Its totient is φ = 12120211001110.

The previous prime is 12120211001033. The next prime is 12120211001179. The reversal of 12120211001111 is 11110011202121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12120211001111 - 210 = 12120211000087 is a prime.

It is a super-2 number, since 2×121202110011112 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120211001191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060105500555 + 6060105500556.

It is an arithmetic number, because the mean of its divisors is an integer number (6060105500556).

Almost surely, 212120211001111 is an apocalyptic number.

12120211001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120211001111 is an equidigital number, since it uses as much as digits as its factorization.

12120211001111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12120211001111 its reverse (11110011202121), we get a palindrome (23230222203232).

The spelling of 12120211001111 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, one thousand, one hundred eleven".