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1102210220 = 22561903451
BaseRepresentation
bin100000110110010…
…0110010010101100
32211211000002011202
41001230212102230
54224131211340
6301212105032
736212426606
oct10154462254
92754002152
101102210220
11516194941
12269165178
131474759c7
14a6556176
1566b70c15
hex41b264ac

1102210220 has 24 divisors (see below), whose sum is σ = 2352589008. Its totient is φ = 433656000.

The previous prime is 1102210217. The next prime is 1102210223. The reversal of 1102210220 is 220122011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1102210217) and next prime (1102210223).

It is not an unprimeable number, because it can be changed into a prime (1102210223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450506 + ... + 452945.

It is an arithmetic number, because the mean of its divisors is an integer number (98024542).

Almost surely, 21102210220 is an apocalyptic number.

1102210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102210220 is an abundant number, since it is smaller than the sum of its proper divisors (1250378788).

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

1102210220 is a wasteful number, since it uses less digits than its factorization.

1102210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903521 (or 903519 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1102210220 is about 33199.5515029947. The cubic root of 1102210220 is about 1032.9710365928.

Adding to 1102210220 its reverse (220122011), we get a palindrome (1322332231).

The spelling of 1102210220 in words is "one billion, one hundred two million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 903451 1806902 3613804 4517255 9034510 18069020 55110511 110221022 220442044 275552555 551105110 1102210220