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2011111122 = 232334694201
BaseRepresentation
bin111011111011111…
…0001111011010010
312012011021000211010
41313313301323102
513104321023442
6531321031350
7100560106506
oct16767617322
95164230733
102011111122
11942246609
12481625556
132608678a7
1415114c306
15bb859b9c
hex77df1ed2

2011111122 has 32 divisors (see below), whose sum is σ = 4199310720. Its totient is φ = 640886400.

The previous prime is 2011111103. The next prime is 2011111159. The reversal of 2011111122 is 2211111102.

It is a junction number, because it is equal to n+sod(n) for n = 2011111098 and 2011111107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476622 + ... + 480822.

It is an arithmetic number, because the mean of its divisors is an integer number (131228460).

Almost surely, 22011111122 is an apocalyptic number.

2011111122 is an abundant number, since it is smaller than the sum of its proper divisors (2188199598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011111122 is a wasteful number, since it uses less digits than its factorization.

2011111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7698.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2011111122 is about 44845.4136116504. The cubic root of 2011111122 is about 1262.2499318719.

Adding to 2011111122 its reverse (2211111102), we get a palindrome (4222222224).

The spelling of 2011111122 in words is "two billion, eleven million, one hundred eleven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 23 46 69 138 3469 4201 6938 8402 10407 12603 20814 25206 79787 96623 159574 193246 239361 289869 478722 579738 14573269 29146538 43719807 87439614 335185187 670370374 1005555561 2011111122