Search a number
-
+
101220222011012 = 22131946542730981
BaseRepresentation
bin10111000000111100101011…
…011000001000011010000100
3111021101120002022022020100222
4113000330223120020122010
5101231343003313323022
6555135532243123512
730214630314122516
oct2700745330103204
9437346068266328
10101220222011012
112a285289579465
12b4291a7673598
1344630450cb430
141add128cd3bb6
15ba7e8497c242
hex5c0f2b608684

101220222011012 has 12 divisors (see below), whose sum is σ = 190761187636236. Its totient is φ = 46717025543520.

The previous prime is 101220222011009. The next prime is 101220222011023. The reversal of 101220222011012 is 210110222022101.

It can be written as a sum of positive squares in 2 ways, for example, as 35044339870276 + 66175882140736 = 5919826^2 + 8134856^2 .

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 3 ways as a sum of consecutive naturals, for example, 973271365439 + ... + 973271365542.

It is an arithmetic number, because the mean of its divisors is an integer number (15896765636353).

Almost surely, 2101220222011012 is an apocalyptic number.

It is an amenable number.

101220222011012 is a deficient number, since it is larger than the sum of its proper divisors (89540965625224).

101220222011012 is a wasteful number, since it uses less digits than its factorization.

101220222011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946542730998 (or 1946542730996 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101220222011012 its reverse (210110222022101), we get a palindrome (311330444033113).

The spelling of 101220222011012 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-two million, eleven thousand, twelve".

Divisors: 1 2 4 13 26 52 1946542730981 3893085461962 7786170923924 25305055502753 50610111005506 101220222011012