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120222101220 = 223513211856223
BaseRepresentation
bin110111111110111001…
…0111010111011100100
3102111022111002112002120
41233331302322323210
53432203324214340
6131121304505540
711454133666554
oct1577562727344
9374274075076
10120222101220
1146a93273051
121b37217b2b0
13b44c20c300
145b66a3d164
1531d97284d0
hex1bfdcbaee4

120222101220 has 72 divisors (see below), whose sum is σ = 364507750656. Its totient is φ = 29593130112.

The previous prime is 120222101203. The next prime is 120222101221. The reversal of 120222101220 is 22101222021.

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 120222101220.

It is not an unprimeable number, because it can be changed into a prime (120222101221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5917972 + ... + 5938251.

It is an arithmetic number, because the mean of its divisors is an integer number (5062607648).

Almost surely, 2120222101220 is an apocalyptic number.

120222101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120222101220 is an abundant number, since it is smaller than the sum of its proper divisors (244285649436).

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

120222101220 is a wasteful number, since it uses less digits than its factorization.

120222101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856261 (or 11856246 counting only the distinct ones).

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

Adding to 120222101220 its reverse (22101222021), we get a palindrome (142323323241).

The spelling of 120222101220 in words is "one hundred twenty billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 169 195 260 338 390 507 676 780 845 1014 1690 2028 2535 3380 5070 10140 11856223 23712446 35568669 47424892 59281115 71137338 118562230 142274676 154130899 177843345 237124460 308261798 355686690 462392697 616523596 711373380 770654495 924785394 1541308990 1849570788 2003701687 2311963485 3082617980 4007403374 4623926970 6011105061 8014806748 9247853940 10018508435 12022210122 20037016870 24044420244 30055525305 40074033740 60111050610 120222101220