1106221605 has 24 divisors (see below), whose sum is σ = 1779126048. Its totient is φ = 586943136.

The previous prime is 1106221579. The next prime is 1106221607. The reversal of 1106221605 is 5061226011.

It is not a de Polignac number, because 1106221605 - 2⁵ = 1106221573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106221607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745194 + ... + 746676.

It is an arithmetic number, because the mean of its divisors is an integer number (74130252).

Almost surely, 2^1106221605 is an apocalyptic number.

1106221605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1106221605 is a deficient number, since it is larger than the sum of its proper divisors (672904443).

1106221605 is an equidigital number, since it uses as much as digits as its factorization.

1106221605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1106221605 is about 33259.9098766067. The cubic root of 1106221605 is about 1034.2226513909. Note that the first 3 decimals are identical.

Adding to 1106221605 its reverse (5061226011), we get a palindrome (6167447616).

The spelling of 1106221605 in words is "one billion, one hundred six million, two hundred twenty-one thousand, six hundred five".