Search a number
-
+
11111112211 = 27414053671
BaseRepresentation
bin10100101100100011…
…00001111000010011
31001200100111222112111
422112101201320103
5140223421042321
65034313410151
7542225616103
oct122621417023
931610458474
1011111112211
114791a2a071
1221a1109957
131080c5c014
14775955203
154506db5e1
hex296461e13

11111112211 has 4 divisors (see below), whose sum is σ = 11115168624. Its totient is φ = 11107055800.

The previous prime is 11111112209. The next prime is 11111112307. The reversal of 11111112211 is 11221111111.

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

It is a cyclic number.

It is not a de Polignac number, because 11111112211 - 21 = 11111112209 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11111112191 and 11111112200.

It is not an unprimeable number, because it can be changed into a prime (11111110211) 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, 2024095 + ... + 2029576.

It is an arithmetic number, because the mean of its divisors is an integer number (2778792156).

Almost surely, 211111112211 is an apocalyptic number.

11111112211 is a deficient number, since it is larger than the sum of its proper divisors (4056413).

11111112211 is an equidigital number, since it uses as much as digits as its factorization.

11111112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056412.

The product of its digits is 4, while the sum is 13.

Adding to 11111112211 its reverse (11221111111), we get a palindrome (22332223322).

It can be divided in two parts, 11111 and 112211, that multiplied together give a palindrome (1246776421).

The spelling of 11111112211 in words is "eleven billion, one hundred eleven million, one hundred twelve thousand, two hundred eleven".

Divisors: 1 2741 4053671 11111112211