109221340 has 48 divisors (see below), whose sum is σ = 235472832. Its totient is φ = 42538496.

The previous prime is 109221283. The next prime is 109221341. The reversal of 109221340 is 43122901.

It is a super-2 number, since 2×109221340² = 23858602222791200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109221341) 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, 176712 + ... + 177328.

It is an arithmetic number, because the mean of its divisors is an integer number (4905684).

Almost surely, 2^109221340 is an apocalyptic number.

109221340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109221340 is an abundant number, since it is smaller than the sum of its proper divisors (126251492).

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

109221340 is a wasteful number, since it uses less digits than its factorization.

109221340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 109221340 is about 10450.9013965303. The cubic root of 109221340 is about 478.0087356818.

It can be divided in two parts, 109221 and 340, that added together give a square (109561 = 331²).

The spelling of 109221340 in words is "one hundred nine million, two hundred twenty-one thousand, three hundred forty".