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2210112220 = 225139978989
BaseRepresentation
bin1000001110111011…
…1010001011011100
312201000201100000011
42003232322023130
514011242042340
61003150213004
7105524433601
oct20356721334
95630640004
102210112220
11a34607028
125181b4164
13292b62314
1416d7506a8
15ce0680ea
hex83bba2dc

2210112220 has 24 divisors (see below), whose sum is σ = 4644612000. Its totient is φ = 883401792.

The previous prime is 2210112209. The next prime is 2210112221. The reversal of 2210112220 is 222110122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2210112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210112221) 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 7 ways as a sum of consecutive naturals, for example, 11515 + ... + 67474.

It is an arithmetic number, because the mean of its divisors is an integer number (193525500).

Almost surely, 22210112220 is an apocalyptic number.

2210112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210112220 is an abundant number, since it is smaller than the sum of its proper divisors (2434499780).

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

2210112220 is a wasteful number, since it uses less digits than its factorization.

2210112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80397 (or 80395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2210112220 is about 47011.8306386807. The cubic root of 2210112220 is about 1302.5811085859.

Adding to 2210112220 its reverse (222110122), we get a palindrome (2432222342).

The spelling of 2210112220 in words is "two billion, two hundred ten million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1399 2798 5596 6995 13990 27980 78989 157978 315956 394945 789890 1579780 110505611 221011222 442022444 552528055 1105056110 2210112220