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1220102221001 = 6191979996001
BaseRepresentation
bin10001110000010011110…
…000100110110011001001
311022122022000120202002012
4101300103300212303021
5124442232132033001
62332301320545305
7154102161522236
oct21602360466311
94278260522065
101220102221001
11430495994284
12178569922235
138b094203031
14430a621c78d
1521b0e8e92bb
hex11c13c26cc9

1220102221001 has 8 divisors (see below), whose sum is σ = 1222692055200. Its totient is φ = 1217514384000.

The previous prime is 1220102220989. The next prime is 1220102221007. The reversal of 1220102221001 is 1001222010221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220102221001 - 234 = 1202922351817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220102221007) 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, 727001 + ... + 1723001.

It is an arithmetic number, because the mean of its divisors is an integer number (152836506900).

Almost surely, 21220102221001 is an apocalyptic number.

It is an amenable number.

1220102221001 is a deficient number, since it is larger than the sum of its proper divisors (2589834199).

1220102221001 is an equidigital number, since it uses as much as digits as its factorization.

1220102221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998599.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220102221001 its reverse (1001222010221), we get a palindrome (2221324231222).

The spelling of 1220102221001 in words is "one trillion, two hundred twenty billion, one hundred two million, two hundred twenty-one thousand, one".

Divisors: 1 619 1979 996001 1225001 616524619 1971085979 1220102221001