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11202201001 = 82113644581
BaseRepresentation
bin10100110111011010…
…00000010110101001
31001220200220202212101
422123231000112221
5140420230413001
65051330013401
7544413065065
oct123355002651
931820822771
1011202201001
114829394462
122207717261
131096aa2704
14783aa6aa5
154586d0a01
hex29bb405a9

11202201001 has 4 divisors (see below), whose sum is σ = 11215846404. Its totient is φ = 11188555600.

The previous prime is 11202200987. The next prime is 11202201019. The reversal of 11202201001 is 10010220211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5083832601 + 6118368400 = 71301^2 + 78220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11202201001 - 215 = 11202168233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11202201071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6821470 + ... + 6823111.

It is an arithmetic number, because the mean of its divisors is an integer number (2803961601).

Almost surely, 211202201001 is an apocalyptic number.

It is an amenable number.

11202201001 is a deficient number, since it is larger than the sum of its proper divisors (13645403).

11202201001 is an equidigital number, since it uses as much as digits as its factorization.

11202201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13645402.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11202201001 its reverse (10010220211), we get a palindrome (21212421212).

The spelling of 11202201001 in words is "eleven billion, two hundred two million, two hundred one thousand, one".

Divisors: 1 821 13644581 11202201001