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120331102220 = 2257361287557
BaseRepresentation
bin111000000010001001…
…0101110100000001100
3102111121002012100100122
41300010102232200030
53432414230232340
6131140201044112
711456626331000
oct1600422564014
9374532170318
10120331102220
114703985211a
121b3a2786638
13b468984a44
145b772d4700
1531e40a9db5
hex1c044ae80c

120331102220 has 96 divisors (see below), whose sum is σ = 299520412800. Its totient is φ = 40579902720.

The previous prime is 120331102183. The next prime is 120331102231. The reversal of 120331102220 is 22201133021.

It is a super-2 number, since 2×1203311022202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 274682 + ... + 562238.

It is an arithmetic number, because the mean of its divisors is an integer number (3120004300).

Almost surely, 2120331102220 is an apocalyptic number.

120331102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120331102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149760206400).

120331102220 is an abundant number, since it is smaller than the sum of its proper divisors (179189310580).

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

120331102220 is a wasteful number, since it uses less digits than its factorization.

120331102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287648 (or 287632 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120331102220 its reverse (22201133021), we get a palindrome (142532235241).

The spelling of 120331102220 in words is "one hundred twenty billion, three hundred thirty-one million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 61 70 98 122 140 196 244 245 305 343 427 490 610 686 854 980 1220 1372 1708 1715 2135 2989 3430 4270 5978 6860 8540 11956 14945 20923 29890 41846 59780 83692 104615 209230 287557 418460 575114 1150228 1437785 2012899 2875570 4025798 5751140 8051596 10064495 14090293 17540977 20128990 28180586 35081954 40257980 56361172 70163908 70451465 87704885 98632051 122786839 140902930 175409770 197264102 245573678 281805860 350819540 394528204 491147356 493160255 613934195 859507873 986320510 1227868390 1719015746 1972641020 2455736780 3438031492 4297539365 6016555111 8595078730 12033110222 17190157460 24066220444 30082775555 60165551110 120331102220