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11212101100121 = 23521935667287
BaseRepresentation
bin1010001100101000010101…
…0011011010001001011001
31110200212101121021221110012
42203022011103122021121
52432144340340200441
635502433530131305
72235022213610525
oct243120523321131
943625347257405
1011212101100121
1136330308547a9
121310b91b80b35
136343b18151ac
142aa950870d85
151469bc1be9eb
hexa32854da259

11212101100121 has 8 divisors (see below), whose sum is σ = 11722039784064. Its totient is φ = 10704033751840.

The previous prime is 11212101100111. The next prime is 11212101100163. The reversal of 11212101100121 is 12100110121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212101100121 - 222 = 11212096905817 is a prime.

It is a super-2 number, since 2×112121011001212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212101100096 and 11212101100105.

It is not an unprimeable number, because it can be changed into a prime (11212101100111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467821661 + ... + 467845626.

It is an arithmetic number, because the mean of its divisors is an integer number (1465254973008).

Almost surely, 211212101100121 is an apocalyptic number.

It is an amenable number.

11212101100121 is a deficient number, since it is larger than the sum of its proper divisors (509938683943).

11212101100121 is an equidigital number, since it uses as much as digits as its factorization.

11212101100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935667831.

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

Adding to 11212101100121 its reverse (12100110121211), we get a palindrome (23312211221332).

The spelling of 11212101100121 in words is "eleven trillion, two hundred twelve billion, one hundred one million, one hundred thousand, one hundred twenty-one".

Divisors: 1 23 521 11983 935667287 21520347601 487482656527 11212101100121