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120120122220 = 22357299862079
BaseRepresentation
bin110111111011110110…
…1111001101101101100
3102111001101012110012120
41233313231321231230
53432001222402340
6131103223032540
711451455122650
oct1576755715554
9374041173176
10120120122220
1146a4074a78a
121b343b9b750
13b434054ac7
145b57294a60
1531d07d24d0
hex1bf7b79b6c

120120122220 has 96 divisors (see below), whose sum is σ = 397639065600. Its totient is φ = 26509265664.

The previous prime is 120120122209. The next prime is 120120122293. The reversal of 120120122220 is 22221021021.

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 120120122220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4918860 + ... + 4943219.

It is an arithmetic number, because the mean of its divisors is an integer number (4142073600).

Almost surely, 2120120122220 is an apocalyptic number.

120120122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120122220 is an abundant number, since it is smaller than the sum of its proper divisors (277518943380).

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

120120122220 is a wasteful number, since it uses less digits than its factorization.

120120122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862127 (or 9862125 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120120122220 its reverse (22221021021), we get a palindrome (142341143241).

The spelling of 120120122220 in words is "one hundred twenty billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 29 30 35 42 58 60 70 84 87 105 116 140 145 174 203 210 290 348 406 420 435 580 609 812 870 1015 1218 1740 2030 2436 3045 4060 6090 12180 9862079 19724158 29586237 39448316 49310395 59172474 69034553 98620790 118344948 138069106 147931185 197241580 207103659 276138212 286000291 295862370 345172765 414207318 572000582 591724740 690345530 828414636 858000873 1035518295 1144001164 1380691060 1430001455 1716001746 2002002037 2071036590 2860002910 3432003492 4004004074 4142073180 4290004365 5720005820 6006006111 8008008148 8580008730 10010010185 12012012222 17160017460 20020020370 24024024444 30030030555 40040040740 60060061110 120120122220