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1200201211200 = 263521916778803
BaseRepresentation
bin10001011101110001100…
…100010001110101000000
311020201221002022200212010
4101131301210101311000
5124131003002224300
62315210445132520
7152466050653425
oct21356144216500
94221832280763
101200201211200
11423003327042
12174734b5a140
13892421a73a4
1442139143d4c
15213476d3a50
hex11771911d40

1200201211200 has 336 divisors, whose sum is σ = 4169778117120. Its totient is φ = 301389281280.

The previous prime is 1200201211177. The next prime is 1200201211213. The reversal of 1200201211200 is 21121020021.

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

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 47 ways as a sum of consecutive naturals, for example, 15190999 + ... + 15269801.

It is an arithmetic number, because the mean of its divisors is an integer number (12410053920).

Almost surely, 21200201211200 is an apocalyptic number.

1200201211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200201211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2084889058560).

1200201211200 is an abundant number, since it is smaller than the sum of its proper divisors (2969576905920).

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

1200201211200 is a wasteful number, since it uses less digits than its factorization.

1200201211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79014 (or 78999 counting only the distinct ones).

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

Adding to 1200201211200 its reverse (21121020021), we get a palindrome (1221322231221).

The spelling of 1200201211200 in words is "one trillion, two hundred billion, two hundred one million, two hundred eleven thousand, two hundred".