1101222105 has 16 divisors (see below), whose sum is σ = 1767286464. Its totient is φ = 585541440.

The previous prime is 1101222103. The next prime is 1101222119. The reversal of 1101222105 is 5012221011.

It is not a de Polignac number, because 1101222105 - 2¹ = 1101222103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1101222103) 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 15 ways as a sum of consecutive naturals, for example, 105934 + ... + 115863.

It is an arithmetic number, because the mean of its divisors is an integer number (110455404).

Almost surely, 2^1101222105 is an apocalyptic number.

1101222105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101222105 is a deficient number, since it is larger than the sum of its proper divisors (666064359).

1101222105 is a wasteful number, since it uses less digits than its factorization.

1101222105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222136.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1101222105 is about 33184.6667152165. Note that the first 3 decimals coincide. The cubic root of 1101222105 is about 1032.6622632688.

Adding to 1101222105 its reverse (5012221011), we get a palindrome (6113443116).

The spelling of 1101222105 in words is "one billion, one hundred one million, two hundred twenty-two thousand, one hundred five".