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111023112222 = 23211250974799
BaseRepresentation
bin110011101100101111…
…1100100000000011110
3101121120101120110111100
41213121133210000132
53304333404042342
6123000414333530
711010153611631
oct1473137440036
9347511513440
10111023112222
11430a271a500
12196254ba2a6
13a614469c59
145533029c18
152d4bd41e4c
hex19d97e401e

111023112222 has 36 divisors (see below), whose sum is σ = 264406287600. Its totient is φ = 33643366680.

The previous prime is 111023112209. The next prime is 111023112247. The reversal of 111023112222 is 222211320111.

It is a super-2 number, since 2×1110231122222 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111023112195 and 111023112204.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 25485222 + ... + 25489577.

It is an arithmetic number, because the mean of its divisors is an integer number (7344619100).

Almost surely, 2111023112222 is an apocalyptic number.

111023112222 is an abundant number, since it is smaller than the sum of its proper divisors (153383175378).

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

111023112222 is a wasteful number, since it uses less digits than its factorization.

111023112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50974829 (or 50974815 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111023112222 its reverse (222211320111), we get a palindrome (333234432333).

The spelling of 111023112222 in words is "one hundred eleven billion, twenty-three million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 121 198 242 363 726 1089 2178 50974799 101949598 152924397 305848794 458773191 560722789 917546382 1121445578 1682168367 3364336734 5046505101 6167950679 10093010202 12335901358 18503852037 37007704074 55511556111 111023112222