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201011112012 = 223139120510259
BaseRepresentation
bin1011101100110100110…
…0100010100001001100
3201012211210212111102110
42323031030202201030
511243132321041022
6232202045424020
720344146155304
oct2731514424114
9635753774373
10201011112012
1178280594667
1232b5a26b010
1315c5594a0c9
149a2c4c2604
1553670ed00c
hex2ecd32284c

201011112012 has 24 divisors (see below), whose sum is σ = 472400219200. Its totient is φ = 66521662416.

The previous prime is 201011111999. The next prime is 201011112013. The reversal of 201011112012 is 210211110102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (201011112013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60253462 + ... + 60256797.

Almost surely, 2201011112012 is an apocalyptic number.

It is an amenable number.

201011112012 is an abundant number, since it is smaller than the sum of its proper divisors (271389107188).

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

201011112012 is a wasteful number, since it uses less digits than its factorization.

201011112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120510405 (or 120510403 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201011112012 its reverse (210211110102), we get a palindrome (411222222114).

The spelling of 201011112012 in words is "two hundred one billion, eleven million, one hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 120510259 241020518 361530777 482041036 723061554 1446123108 16750926001 33501852002 50252778003 67003704004 100505556006 201011112012