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201012001212 = 223118811728511
BaseRepresentation
bin1011101100110100111…
…1111011100110111100
3201012211212112200011210
42323031033323212330
511243133033014322
6232202120444420
720344156550601
oct2731517734674
9635755480153
10201012001212
1178281041740
1232b5a619710
1315c55b9ba69
149a2c6746a8
15536722670c
hex2ecd3fb9bc

201012001212 has 48 divisors (see below), whose sum is σ = 512247988224. Its totient is φ = 60843552000.

The previous prime is 201012001199. The next prime is 201012001219. The reversal of 201012001212 is 212100210102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012001219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747964 + ... + 980547.

It is an arithmetic number, because the mean of its divisors is an integer number (10671833088).

Almost surely, 2201012001212 is an apocalyptic number.

201012001212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201012001212 is an abundant number, since it is smaller than the sum of its proper divisors (311235987012).

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

201012001212 is a wasteful number, since it uses less digits than its factorization.

201012001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729410 (or 1729408 counting only the distinct ones).

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

Adding to 201012001212 its reverse (212100210102), we get a palindrome (413112211314).

The spelling of 201012001212 in words is "two hundred one billion, twelve million, one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 881 1762 2643 3524 5286 9691 10572 19382 29073 38764 58146 116292 1728511 3457022 5185533 6914044 10371066 19013621 20742132 38027242 57040863 76054484 114081726 228163452 1522818191 3045636382 4568454573 6091272764 9136909146 16751000101 18273818292 33502000202 50253000303 67004000404 100506000606 201012001212