Search a number
-
+
20120010022212 = 2232382788148231
BaseRepresentation
bin1001001001100100011100…
…00011001101110101000100
32122020110021002111022001020
410210302032003031311010
510114121240031202322
6110443001025231140
74144423414255362
oct444621603156504
978213232438036
1020120010022212
116457937147a81
12230b4867924b0
13b2c402599ab9
144d7b56a52632
1524d57ab6b05c
hex124c8e0cdd44

20120010022212 has 48 divisors (see below), whose sum is σ = 49047086656512. Its totient is φ = 6407318542240.

The previous prime is 20120010022207. The next prime is 20120010022237. The reversal of 20120010022212 is 21222001002102.

It is a super-2 number, since 2×201200100222122 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20120010022191 and 20120010022200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43845864 + ... + 44302367.

It is an arithmetic number, because the mean of its divisors is an integer number (1021814305344).

Almost surely, 220120010022212 is an apocalyptic number.

It is an amenable number.

20120010022212 is an abundant number, since it is smaller than the sum of its proper divisors (28927076634300).

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

20120010022212 is a wasteful number, since it uses less digits than its factorization.

20120010022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88149088 (or 88149086 counting only the distinct ones).

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

Adding to 20120010022212 its reverse (21222001002102), we get a palindrome (41342011024314).

The spelling of 20120010022212 in words is "twenty trillion, one hundred twenty billion, ten million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 827 1654 2481 3308 4962 9924 19021 38042 57063 76084 114126 228252 88148231 176296462 264444693 352592924 528889386 1057778772 2027409313 4054818626 6082227939 8109637252 12164455878 24328911756 72898587037 145797174074 218695761111 291594348148 437391522222 874783044444 1676667501851 3353335003702 5030002505553 6706670007404 10060005011106 20120010022212