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1220320200001 = 7521893340387
BaseRepresentation
bin10001110000100000110…
…000001000010101000001
311022122212012202020001111
4101300200300020111001
5124443203432400001
62332335105003321
7154110446360440
oct21604060102501
94278765666044
101220320200001
11430597a37111
1217860a923541
138b0ca4138a6
14430c7160d57
1521b23b05851
hex11c20c08541

1220320200001 has 8 divisors (see below), whose sum is σ = 1394678797760. Its totient is φ = 1045968387408.

The previous prime is 1220320199963. The next prime is 1220320200019. The reversal of 1220320200001 is 1000020230221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220320200001 - 213 = 1220320191809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220320200061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304871 + ... + 2035516.

It is an arithmetic number, because the mean of its divisors is an integer number (174334849720).

Almost surely, 21220320200001 is an apocalyptic number.

It is an amenable number.

1220320200001 is a deficient number, since it is larger than the sum of its proper divisors (174358597759).

1220320200001 is an equidigital number, since it uses as much as digits as its factorization.

1220320200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392583.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 1220320200001 its reverse (1000020230221), we get a palindrome (2220340430222).

The spelling of 1220320200001 in words is "one trillion, two hundred twenty billion, three hundred twenty million, two hundred thousand, one".

Divisors: 1 7 52189 365323 3340387 23382709 174331457143 1220320200001