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1200210111012 = 2231119945690959
BaseRepresentation
bin10001011101110010000…
…110001110101000100100
311020201221201001212002210
4101131302012032220210
5124131012242023022
62315211404003420
7152466216421413
oct21356206165044
94221851055083
101200210111012
11423008355660
12174737b30570
1389243ca2253
144213a3bd47a
1521348390a0c
hex1177218ea24

1200210111012 has 48 divisors (see below), whose sum is σ = 3070432512000. Its totient is φ = 361872387360.

The previous prime is 1200210110999. The next prime is 1200210111077. The reversal of 1200210111012 is 2101110120021.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22819212 + ... + 22871747.

It is an arithmetic number, because the mean of its divisors is an integer number (63967344000).

Almost surely, 21200210111012 is an apocalyptic number.

1200210111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200210111012 is an abundant number, since it is smaller than the sum of its proper divisors (1870222400988).

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

1200210111012 is a wasteful number, since it uses less digits than its factorization.

1200210111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45691176 (or 45691174 counting only the distinct ones).

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

Adding to 1200210111012 its reverse (2101110120021), we get a palindrome (3301320231033).

Subtracting 1200210111012 from its reverse (2101110120021), we obtain a palindrome (900900009009).

The spelling of 1200210111012 in words is "one trillion, two hundred billion, two hundred ten million, one hundred eleven thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 199 398 597 796 1194 2189 2388 4378 6567 8756 13134 26268 45690959 91381918 137072877 182763836 274145754 502600549 548291508 1005201098 1507801647 2010402196 3015603294 6031206588 9092500841 18185001682 27277502523 36370003364 54555005046 100017509251 109110010092 200035018502 300052527753 400070037004 600105055506 1200210111012