109221105 has 32 divisors (see below), whose sum is σ = 206611200. Its totient is φ = 48206592.

The previous prime is 109221071. The next prime is 109221121. The reversal of 109221105 is 501122901.

It is not a de Polignac number, because 109221105 - 2⁹ = 109220593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14890 + ... + 20979.

It is an arithmetic number, because the mean of its divisors is an integer number (6456600).

Almost surely, 2^109221105 is an apocalyptic number.

109221105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109221105 is a deficient number, since it is larger than the sum of its proper divisors (97390095).

109221105 is a wasteful number, since it uses less digits than its factorization.

109221105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35913.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 109221105 is about 10450.8901534750. The cubic root of 109221105 is about 478.0083928546.

The spelling of 109221105 in words is "one hundred nine million, two hundred twenty-one thousand, one hundred five".