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120220110220 = 2257858715073
BaseRepresentation
bin110111111110110101…
…1010100110110001100
3102111022100100100221211
41233331223110312030
53432202322011340
6131121154104204
711454111035110
oct1577553246614
9374270310854
10120220110220
1146a921331a1
121b37157b064
13b44b992cc2
145b66681740
1531d94835ea
hex1bfdad4d8c

120220110220 has 24 divisors (see below), whose sum is σ = 288528264864. Its totient is φ = 41218323456.

The previous prime is 120220110211. The next prime is 120220110223. The reversal of 120220110220 is 22011022021.

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 120220110220.

It is not an unprimeable number, because it can be changed into a prime (120220110223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429357397 + ... + 429357676.

It is an arithmetic number, because the mean of its divisors is an integer number (12022011036).

Almost surely, 2120220110220 is an apocalyptic number.

120220110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120220110220 is an abundant number, since it is smaller than the sum of its proper divisors (168308154644).

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

120220110220 is a wasteful number, since it uses less digits than its factorization.

120220110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858715089 (or 858715087 counting only the distinct ones).

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

Adding to 120220110220 its reverse (22011022021), we get a palindrome (142231132241).

The spelling of 120220110220 in words is "one hundred twenty billion, two hundred twenty million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 858715073 1717430146 3434860292 4293575365 6011005511 8587150730 12022011022 17174301460 24044022044 30055027555 60110055110 120220110220