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11110212101 = 97111442031
BaseRepresentation
bin10100101100011100…
…00110001000000101
31001200021211020211002
422112032012020011
5140223203241401
65034242223045
7542215146632
oct122616061005
931607736732
1011110212101
11479147487a
1221a0954a85
131080a05401
1477579d189
154505aea6b
hex296386205

11110212101 has 4 divisors (see below), whose sum is σ = 11121655104. Its totient is φ = 11098769100.

The previous prime is 11110212097. The next prime is 11110212107. The reversal of 11110212101 is 10121201111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10121201111 = 71445885873.

It is a cyclic number.

It is not a de Polignac number, because 11110212101 - 22 = 11110212097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110212107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5720045 + ... + 5721986.

It is an arithmetic number, because the mean of its divisors is an integer number (2780413776).

Almost surely, 211110212101 is an apocalyptic number.

It is an amenable number.

11110212101 is a deficient number, since it is larger than the sum of its proper divisors (11443003).

11110212101 is an equidigital number, since it uses as much as digits as its factorization.

11110212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11443002.

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

Adding to 11110212101 its reverse (10121201111), we get a palindrome (21231413212).

The spelling of 11110212101 in words is "eleven billion, one hundred ten million, two hundred twelve thousand, one hundred one".

Divisors: 1 971 11442031 11110212101