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2221242001 = 11953921169
BaseRepresentation
bin1000010001100101…
…0111011010010001
312201210122210012021
42010121113122101
514022114221001
61004224531441
7106021150126
oct20431273221
95653583167
102221242001
11a3a918aa0
1251ba80b81
1329525b1a4
1417100a74d
15d0015ba1
hex84657691

2221242001 has 8 divisors (see below), whose sum is σ = 2423541600. Its totient is φ = 2019003840.

The previous prime is 2221241999. The next prime is 2221242007. The reversal of 2221242001 is 1002421222.

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 2221242001 - 21 = 2221241999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221242007) 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, 94345 + ... + 115513.

It is an arithmetic number, because the mean of its divisors is an integer number (302942700).

Almost surely, 22221242001 is an apocalyptic number.

It is an amenable number.

2221242001 is a deficient number, since it is larger than the sum of its proper divisors (202299599).

2221242001 is a wasteful number, since it uses less digits than its factorization.

2221242001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30719.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2221242001 is about 47130.0541162431. The cubic root of 2221242001 is about 1304.7639803540.

Adding to 2221242001 its reverse (1002421222), we get a palindrome (3223663223).

The spelling of 2221242001 in words is "two billion, two hundred twenty-one million, two hundred forty-two thousand, one".

Divisors: 1 11 9539 21169 104929 232859 201931091 2221242001