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2210101112220 = 2235291270173053
BaseRepresentation
bin100000001010010100010…
…010101010110110011100
321211021122202011012110220
4200022110102222312130
5242202241341042340
64411150105001340
7315450236330601
oct40122422526634
97737582135426
102210101112220
11782331508111
122b83ba483250
131305474b3811
1478d802d46a8
153c753133ed0
hex202944aad9c

2210101112220 has 48 divisors (see below), whose sum is σ = 6401672192160. Its totient is φ = 569037527296.

The previous prime is 2210101112201. The next prime is 2210101112221. The reversal of 2210101112220 is 222111010122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2210101112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210101112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635084787 + ... + 635088266.

It is an arithmetic number, because the mean of its divisors is an integer number (133368170670).

Almost surely, 22210101112220 is an apocalyptic number.

2210101112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210101112220 is an abundant number, since it is smaller than the sum of its proper divisors (4191571079940).

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

2210101112220 is a wasteful number, since it uses less digits than its factorization.

2210101112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270173094 (or 1270173092 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2210101112220 its reverse (222111010122), we get a palindrome (2432212122342).

The spelling of 2210101112220 in words is "two trillion, two hundred ten billion, one hundred one million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 1270173053 2540346106 3810519159 5080692212 6350865265 7621038318 12701730530 15242076636 19052595795 25403461060 36835018537 38105191590 73670037074 76210383180 110505055611 147340074148 184175092685 221010111222 368350185370 442020222444 552525278055 736700370740 1105050556110 2210101112220