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201201112212 = 223234729154153
BaseRepresentation
bin1011101101100010000…
…1010101010010010100
3201020100001101111200220
42323120201111102110
511244024441042322
6232232554034340
720351644143612
oct2733041252224
9636301344626
10201201112212
1178368867621
1232bb1a189b0
1315c86112969
149a498206b2
155378b2e55c
hex2ed8855494

201201112212 has 48 divisors (see below), whose sum is σ = 489987738240. Its totient is φ = 64137097728.

The previous prime is 201201112207. The next prime is 201201112249. The reversal of 201201112212 is 212211102102.

It is a junction number, because it is equal to n+sod(n) for n = 201201112191 and 201201112200.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1228128 + ... + 1382280.

It is an arithmetic number, because the mean of its divisors is an integer number (10208077880).

Almost surely, 2201201112212 is an apocalyptic number.

It is an amenable number.

201201112212 is an abundant number, since it is smaller than the sum of its proper divisors (288786626028).

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

201201112212 is a wasteful number, since it uses less digits than its factorization.

201201112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158912 (or 158910 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201201112212 its reverse (212211102102), we get a palindrome (413412214314).

The spelling of 201201112212 in words is "two hundred one billion, two hundred one million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 4729 9458 14187 18916 28374 56748 108767 154153 217534 308306 326301 435068 462459 616612 652602 924918 1305204 1849836 3545519 7091038 10636557 14182076 21273114 42546228 728989537 1457979074 2186968611 2915958148 4373937222 8747874444 16766759351 33533518702 50300278053 67067037404 100600556106 201201112212