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11221011101 = 84231332187
BaseRepresentation
bin10100111001101001…
…10000101010011101
31001222000022102110202
422130310300222131
5140440034323401
65053241113245
7545032010036
oct123464605235
931860272422
1011221011101
114838a717a3
122211a88825
13109a95a351
147863a1a8d
1545a19906b
hex29cd30a9d

11221011101 has 4 divisors (see below), whose sum is σ = 11222351712. Its totient is φ = 11219670492.

The previous prime is 11221011097. The next prime is 11221011103. The reversal of 11221011101 is 10111012211.

11221011101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221011101 - 22 = 11221011097 is a prime.

It is a super-2 number, since 2×112210111012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221011103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657671 + ... + 674516.

It is an arithmetic number, because the mean of its divisors is an integer number (2805587928).

Almost surely, 211221011101 is an apocalyptic number.

It is an amenable number.

11221011101 is a deficient number, since it is larger than the sum of its proper divisors (1340611).

11221011101 is an equidigital number, since it uses as much as digits as its factorization.

11221011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340610.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11221011101 its reverse (10111012211), we get a palindrome (21332023312).

The spelling of 11221011101 in words is "eleven billion, two hundred twenty-one million, eleven thousand, one hundred one".

Divisors: 1 8423 1332187 11221011101