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1200223202020 = 22560011160101
BaseRepresentation
bin10001011101110010111…
…000001010101011100100
311020201222121200221120221
4101131302320022223210
5124131024114431040
62315212552334124
7152466435613543
oct21356270125344
94221877627527
101200223202020
11423014787077
121747403a4344
13892469069cb
144213c02a15a
15213495c974a
hex11772e0aae4

1200223202020 has 12 divisors (see below), whose sum is σ = 2520468724284. Its totient is φ = 480089280800.

The previous prime is 1200223201979. The next prime is 1200223202051. The reversal of 1200223202020 is 202023220021.

It can be written as a sum of positive squares in 2 ways, for example, as 520683469056 + 679539732964 = 721584^2 + 824342^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1200223201985 and 1200223202003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30005580031 + ... + 30005580070.

It is an arithmetic number, because the mean of its divisors is an integer number (210039060357).

Almost surely, 21200223202020 is an apocalyptic number.

1200223202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200223202020 is an abundant number, since it is smaller than the sum of its proper divisors (1320245522264).

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

1200223202020 is a wasteful number, since it uses less digits than its factorization.

1200223202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60011160110 (or 60011160108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 1200223202020 its reverse (202023220021), we get a palindrome (1402246422041).

The spelling of 1200223202020 in words is "one trillion, two hundred billion, two hundred twenty-three million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 60011160101 120022320202 240044640404 300055800505 600111601010 1200223202020