Search a number
-
+
1220010212 = 221498592383
BaseRepresentation
bin100100010110111…
…1110000011100100
310011000122221101102
41020231332003210
54444310311322
6321021015232
742142626041
oct11055760344
93130587342
101220010212
11576733803
122a06b4518
131659ac445
14b805c1c8
157218e792
hex48b7e0e4

1220010212 has 24 divisors (see below), whose sum is σ = 2152752000. Its totient is φ = 604951776.

The previous prime is 1220010199. The next prime is 1220010217. The reversal of 1220010212 is 2120100221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220010193 and 1220010202.

It is not an unprimeable number, because it can be changed into a prime (1220010217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510773 + ... + 513155.

It is an arithmetic number, because the mean of its divisors is an integer number (89698000).

Almost surely, 21220010212 is an apocalyptic number.

It is an amenable number.

1220010212 is a deficient number, since it is larger than the sum of its proper divisors (932741788).

1220010212 is a wasteful number, since it uses less digits than its factorization.

1220010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395 (or 3393 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220010212 is about 34928.6445771948. The cubic root of 1220010212 is about 1068.5327115137.

Adding to 1220010212 its reverse (2120100221), we get a palindrome (3340110433).

Subtracting 1220010212 from its reverse (2120100221), we obtain a palindrome (900090009).

The spelling of 1220010212 in words is "one billion, two hundred twenty million, ten thousand, two hundred twelve".

Divisors: 1 2 4 149 298 596 859 1718 2383 3436 4766 9532 127991 255982 355067 511964 710134 1420268 2046997 4093994 8187988 305002553 610005106 1220010212