109221164 has 12 divisors (see below), whose sum is σ = 205839984. Its totient is φ = 50409744.

The previous prime is 109221157. The next prime is 109221179. The reversal of 109221164 is 461122901.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050152 + ... + 1050255.

It is an arithmetic number, because the mean of its divisors is an integer number (17153332).

Almost surely, 2^109221164 is an apocalyptic number.

It is an amenable number.

109221164 is a deficient number, since it is larger than the sum of its proper divisors (96618820).

109221164 is a wasteful number, since it uses less digits than its factorization.

109221164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100424 (or 2100422 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 109221164 is about 10450.8929762006. The cubic root of 109221164 is about 478.0084789262.

The spelling of 109221164 in words is "one hundred nine million, two hundred twenty-one thousand, one hundred sixty-four".