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22011100231111 = 471054914439443
BaseRepresentation
bin1010000000100110110111…
…10011110111010111000111
32212221020111102100112002121
411000103123303313113013
510341112213124343421
6114451432043350411
74431151403646535
oct500233363672707
985836442315077
1022011100231111
117016945285842
122575a94b22407
13c3883a4674a4
145614b302d155
1528285c600d41
hex1404dbcf75c7

22011100231111 has 8 divisors (see below), whose sum is σ = 22479639669504. Its totient is φ = 21542569882680.

The previous prime is 22011100231103. The next prime is 22011100231121. The reversal of 22011100231111 is 11113200111022.

It is a happy number.

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 22011100231111 - 23 = 22011100231103 is a prime.

It is a super-2 number, since 2×220111002311112 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011100231121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2738356 + ... + 7177798.

It is an arithmetic number, because the mean of its divisors is an integer number (2809954958688).

Almost surely, 222011100231111 is an apocalyptic number.

22011100231111 is a deficient number, since it is larger than the sum of its proper divisors (468539438393).

22011100231111 is a wasteful number, since it uses less digits than its factorization.

22011100231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544981.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 22011100231111 its reverse (11113200111022), we get a palindrome (33124300342133).

The spelling of 22011100231111 in words is "twenty-two trillion, eleven billion, one hundred million, two hundred thirty-one thousand, one hundred eleven".

Divisors: 1 47 105491 4439443 4958077 208653821 468321281513 22011100231111