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12010222220 = 2251735324183
BaseRepresentation
bin10110010111101110…
…10111001010001100
31011000000100111121012
423023313113022030
5144044104102340
65303432424352
7603424130063
oct131367271214
934000314535
1012010222220
115103503797
1223b22480b8
131195303589
1481d11d1da
154a45de565
hex2cbdd728c

12010222220 has 24 divisors (see below), whose sum is σ = 26705083104. Its totient is φ = 4521495296.

The previous prime is 12010222219. The next prime is 12010222243. The reversal of 12010222220 is 2222201021.

It is a junction number, because it is equal to n+sod(n) for n = 12010222195 and 12010222204.

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 7 ways as a sum of consecutive naturals, for example, 17661752 + ... + 17662431.

It is an arithmetic number, because the mean of its divisors is an integer number (1112711796).

Almost surely, 212010222220 is an apocalyptic number.

12010222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010222220 is an abundant number, since it is smaller than the sum of its proper divisors (14694860884).

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

12010222220 is a wasteful number, since it uses less digits than its factorization.

12010222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35324209 (or 35324207 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12010222220 its reverse (2222201021), we get a palindrome (14232423241).

The spelling of 12010222220 in words is "twelve billion, ten million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 35324183 70648366 141296732 176620915 353241830 600511111 706483660 1201022222 2402044444 3002555555 6005111110 12010222220