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2211102112121 = 7631500589113
BaseRepresentation
bin100000001011001111111…
…101001011100101111001
321211101020111201021012022
4200023033331023211321
5242211314120041441
64411433303524225
7315514112564630
oct40131775134571
97741214637168
102211102112121
117827a5554161
122b8639759675
131306769b0b56
1479037222517
153c7b0e6184b
hex202cff4b979

2211102112121 has 8 divisors (see below), whose sum is σ = 2530978560384. Its totient is φ = 1892226843360.

The previous prime is 2211102112103. The next prime is 2211102112127. The reversal of 2211102112121 is 1212112011122.

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

It is not a de Polignac number, because 2211102112121 - 226 = 2211035003257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211102112121.

It is not an unprimeable number, because it can be changed into a prime (2211102112127) 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 7 ways as a sum of consecutive naturals, for example, 250290140 + ... + 250298973.

It is an arithmetic number, because the mean of its divisors is an integer number (316372320048).

Almost surely, 22211102112121 is an apocalyptic number.

It is an amenable number.

2211102112121 is a deficient number, since it is larger than the sum of its proper divisors (319876448263).

2211102112121 is an equidigital number, since it uses as much as digits as its factorization.

2211102112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500589751.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2211102112121 its reverse (1212112011122), we get a palindrome (3423214123243).

The spelling of 2211102112121 in words is "two trillion, two hundred eleven billion, one hundred two million, one hundred twelve thousand, one hundred twenty-one".

Divisors: 1 7 631 4417 500589113 3504123791 315871730303 2211102112121