109221048 has 80 divisors (see below), whose sum is σ = 313457760. Its totient is φ = 35510400.

The previous prime is 109221031. The next prime is 109221053. The reversal of 109221048 is 840122901.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 24513 + ... + 28623.

It is an arithmetic number, because the mean of its divisors is an integer number (3918222).

Almost surely, 2^109221048 is an apocalyptic number.

109221048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109221048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156728880).

109221048 is an abundant number, since it is smaller than the sum of its proper divisors (204236712).

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

109221048 is a wasteful number, since it uses less digits than its factorization.

109221048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4157 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 109221048 is about 10450.8874264342. The cubic root of 109221048 is about 478.0083097007.

Adding to 109221048 its reverse (840122901), we get a palindrome (949343949).

The spelling of 109221048 in words is "one hundred nine million, two hundred twenty-one thousand, forty-eight".