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201020210012 = 221712792311321
BaseRepresentation
bin1011101100110110111…
…1001111101101011100
3201012212102222201112102
42323031233033231130
511243142133210022
6232203012424232
720344316410136
oct2731557175534
9635772881472
10201020210012
1178285739076
1232b61318078
1315c577b423b
149a2d7b0056
155367ce8a92
hex2ecdbcfb5c

201020210012 has 24 divisors (see below), whose sum is σ = 372770012160. Its totient is φ = 94523742720.

The previous prime is 201020209919. The next prime is 201020210047. The reversal of 201020210012 is 210012020102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201020209975 and 201020210002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068689 + ... + 1242632.

It is an arithmetic number, because the mean of its divisors is an integer number (15532083840).

Almost surely, 2201020210012 is an apocalyptic number.

It is an amenable number.

201020210012 is a deficient number, since it is larger than the sum of its proper divisors (171749802148).

201020210012 is a wasteful number, since it uses less digits than its factorization.

201020210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312621 (or 2312619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201020210012 its reverse (210012020102), we get a palindrome (411032230114).

The spelling of 201020210012 in words is "two hundred one billion, twenty million, two hundred ten thousand, twelve".

Divisors: 1 2 4 17 34 68 1279 2558 5116 21743 43486 86972 2311321 4622642 9245284 39292457 78584914 157169828 2956179559 5912359118 11824718236 50255052503 100510105006 201020210012