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2012211201 = 3711136773137
BaseRepresentation
bin111011111101111…
…1110100000000001
312012020022220211210
41313323332200001
513110111224301
6531400400333
7100602340650
oct16773764001
95166286753
102012211201
11942928070
12481a760a9
13260b61520
14151357197
15bb9c5ad6
hex77efe801

2012211201 has 128 divisors (see below), whose sum is σ = 3733180416. Its totient is φ = 930631680.

The previous prime is 2012211181. The next prime is 2012211203. The reversal of 2012211201 is 1021122102.

It is not a de Polignac number, because 2012211201 - 29 = 2012210689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2012211203) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14687605 + ... + 14687741.

It is an arithmetic number, because the mean of its divisors is an integer number (29165472).

Almost surely, 22012211201 is an apocalyptic number.

2012211201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2012211201 is a deficient number, since it is larger than the sum of its proper divisors (1720969215).

2012211201 is a wasteful number, since it uses less digits than its factorization.

2012211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2012211201 is about 44857.6771690198. The cubic root of 2012211201 is about 1262.4800404125.

Adding to 2012211201 its reverse (1021122102), we get a palindrome (3033333303).

It can be divided in two parts, 20 and 12211201, that added together give a palindrome (12211221).

The spelling of 2012211201 in words is "two billion, twelve million, two hundred eleven thousand, two hundred one".

Divisors: 1 3 7 11 13 21 33 39 67 73 77 91 137 143 201 219 231 273 411 429 469 511 737 803 871 949 959 1001 1407 1507 1533 1781 2211 2409 2613 2847 2877 3003 4521 4891 5159 5343 5621 6097 6643 9179 9581 10001 10439 10549 12467 14673 15477 16863 18291 19591 19929 27537 28743 30003 31317 31647 34237 37401 53801 58773 63583 64253 67067 70007 73073 100969 102711 110011 119327 130013 137137 161403 190749 192759 201201 210021 219219 302907 330033 357981 376607 390039 411411 445081 670067 699413 706783 770077 835289 910091 1129821 1312597 1335243 1430143 2010201 2098239 2120349 2310231 2505867 2730273 3937791 4290429 4690469 4895891 7370737 8710871 9188179 10011001 14071407 14687673 22112211 26132613 27564537 30033003 51595159 60976097 95819581 154785477 182928291 287458743 670737067 2012211201