109013212 has 24 divisors (see below), whose sum is σ = 237847680. Its totient is φ = 42472560.

The previous prime is 109013207. The next prime is 109013249. The reversal of 109013212 is 212310901.

It is a self number, because there is not a number n which added to its sum of digits gives 109013212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176662 + ... + 177277.

It is an arithmetic number, because the mean of its divisors is an integer number (9910320).

Almost surely, 2^109013212 is an apocalyptic number.

It is an amenable number.

109013212 is an abundant number, since it is smaller than the sum of its proper divisors (128834468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109013212 is a wasteful number, since it uses less digits than its factorization.

109013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353961 (or 353959 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 109013212 is about 10440.9392297820. The cubic root of 109013212 is about 477.7049175757.

The spelling of 109013212 in words is "one hundred nine million, thirteen thousand, two hundred twelve".