109624221 has 36 divisors (see below), whose sum is σ = 185001024. Its totient is φ = 62370000.

The previous prime is 109624169. The next prime is 109624223. The reversal of 109624221 is 122426901.

109624221 is a `hidden beast` number, since 10 + 9 + 624 + 2 + 21 = 666.

It is not a de Polignac number, because 109624221 - 2⁷ = 109624093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109624223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145596 + ... + 146346.

Almost surely, 2^109624221 is an apocalyptic number.

It is an amenable number.

109624221 is a deficient number, since it is larger than the sum of its proper divisors (75376803).

109624221 is a wasteful number, since it uses less digits than its factorization.

109624221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 109624221 is about 10470.1585947874. The cubic root of 109624221 is about 478.5957526297.

The spelling of 109624221 in words is "one hundred nine million, six hundred twenty-four thousand, two hundred twenty-one".